Re: CNC'd ported vs hand ported heads: Discussion, long post
[Re: B3422W5]
#1876061
07/22/15 08:24 PM
07/22/15 08:24 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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I know of a small block engine that had its heads hand ported. After they started leaking water, they were scrapped, the same model/ type of heads were given a CNC port copied from the same guy who had hand ported the original set..... In other words his program/ parameters were used The results thus far..... Based on both sets of heads being on the identical engine and dyno, , at the same track, in the same car with no changes other than literally the heads ...It appears there is about a 20 horsepower difference in favor of the hand ported heads...... That was the difference on the dyno...... It appears the track difference is a solid tenth...... The CNC heads are without a doubt " smaller"..... But have more integrity regards the possibility of leaking. This on a 700 ish horsepower engine Sounds like that small block wants a bigger set of heads
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
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Entire Thread
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CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/22/15 04:49 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Azzkikrcuda
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07/22/15 05:12 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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MR_P_BODY
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07/22/15 05:18 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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madscientist
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07/22/15 05:47 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Thumperdart
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07/22/15 06:28 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Stroker Scamp
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07/22/15 06:43 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/22/15 03:13 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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camastomcat
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07/22/15 06:26 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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CTD5.9
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07/22/15 04:56 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/22/15 05:14 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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tboomer
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07/22/15 05:45 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/22/15 05:58 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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cudaman1969
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07/22/15 08:49 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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gregsdart
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07/23/15 01:26 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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madscientist
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07/22/15 05:44 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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CTD5.9
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07/22/15 06:21 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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AndyF
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07/22/15 06:27 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Streetwize
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07/22/15 06:38 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/22/15 08:23 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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MR_P_BODY
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07/22/15 08:37 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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BradH
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07/22/15 08:37 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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AndyF
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07/22/15 09:22 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Porter67
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07/22/15 09:14 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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HotRodDave
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07/22/15 09:43 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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BradH
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07/22/15 10:25 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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v cummins
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07/22/15 11:31 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 01:23 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Hot 340
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07/22/15 11:22 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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madscientist
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07/23/15 02:34 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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FastOne
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07/23/15 04:45 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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sixpackgut
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07/22/15 11:51 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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B3422W5
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07/23/15 12:06 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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sixpackgut
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07/23/15 12:24 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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B3422W5
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07/23/15 12:34 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Porter67
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07/23/15 12:19 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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sixpackgut
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07/23/15 12:30 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Duner
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07/23/15 04:51 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 05:06 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Duner
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07/23/15 05:09 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 05:15 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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CDoering
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07/23/15 05:37 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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jcc
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07/23/15 05:52 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 06:05 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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madscientist
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07/23/15 06:23 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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CDoering
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07/23/15 06:28 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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LA360
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07/23/15 08:58 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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383man
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07/23/15 10:25 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Hot 340
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07/23/15 11:44 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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BradH
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07/24/15 12:36 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Hot 340
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07/24/15 12:57 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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madscientist
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07/23/15 06:22 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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jcc
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07/23/15 04:28 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/25/15 01:49 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Hot 340
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07/25/15 02:09 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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W5DART66
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07/25/15 02:25 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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W5DART66
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07/25/15 02:43 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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W5DART66
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07/25/15 02:46 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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AndyF
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07/26/15 07:08 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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dartman366
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07/26/15 10:23 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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MR_P_BODY
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07/25/15 03:07 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Brian Hafliger
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07/25/15 07:33 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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EchoSixMike
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07/23/15 12:16 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 02:47 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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EchoSixMike
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07/24/15 03:14 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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madscientist
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07/23/15 04:32 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 05:07 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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MR_P_BODY
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07/23/15 10:23 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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cudaman1969
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07/24/15 12:01 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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BradH
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07/24/15 12:43 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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EchoSixMike
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07/24/15 03:28 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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rt66jim
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07/23/15 03:17 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/23/15 03:56 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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B G Racing
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07/24/15 03:23 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/24/15 05:58 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Hot 340
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07/24/15 06:14 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/24/15 06:20 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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cudaman1969
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07/24/15 11:35 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/24/15 11:39 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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rt66jim
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07/25/15 12:37 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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LA360
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07/25/15 03:27 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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B3422W5
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07/25/15 03:48 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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rt66jim
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07/25/15 05:13 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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polyspheric
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07/26/15 03:14 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/26/15 03:30 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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polyspheric
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07/26/15 07:03 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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AndyF
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07/27/15 05:38 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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MR_P_BODY
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07/27/15 06:27 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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EchoSixMike
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07/27/15 06:58 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Porter67
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07/27/15 01:47 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/27/15 02:37 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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B3422W5
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07/27/15 04:34 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/27/15 05:19 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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PorkyPig
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07/29/15 12:49 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Brian Hafliger
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07/29/15 05:03 AM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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pittsburghracer
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07/29/15 01:28 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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justinp61
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07/27/15 03:01 PM
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Re: CNC'd ported vs hand ported heads: Discussion, long post
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Porter67
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07/27/15 04:39 PM
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