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what carb for a 408 #1269730 07/17/12 08:57 PM 07/17/12 08:57 PM
Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca B bill8121 OP member
bill8121 OP member B Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca	Will a 650 eddy be sufficient? I know there's better but that's what i have. J heads for now. Air gap intake and headers. Haven't picked a cam yet.

Re: what carb for a 408 [Re: bill8121] #1269731 07/17/12 09:02 PM 07/17/12 09:02 PM
Joined: May 2004 Posts: 12,397 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,397 Taxes & Virus's R-US, NY	What converter, tire size, gear ratio, auto/stick & what cam? '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: what carb for a 408 [Re: Dragula] #1269732 07/17/12 09:40 PM 07/17/12 09:40 PM
Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca B bill8121 OP member
bill8121 OP member B Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca	4.10, 25-2800 stall. Don't know the tire size off hand. It's a truck though if that helps. No low profile gangsters. Haven't picked a cam yet.

Re: what carb for a 408 [Re: bill8121] #1269733 07/17/12 09:41 PM 07/17/12 09:41 PM
Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca B bill8121 OP member
bill8121 OP member B Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca	Oops i mean gangstas

Re: what carb for a 408 [Re: bill8121] #1269734 07/17/12 09:42 PM 07/17/12 09:42 PM
Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca B bill8121 OP member
bill8121 OP member B Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca	Oh yea tf 727 mvb

Re: what carb for a 408 [Re: bill8121] #1269735 07/17/12 10:39 PM 07/17/12 10:39 PM
Joined: Aug 2006 Posts: 2,141 junction city oregon V viperblue72 top fuel
viperblue72 top fuel V Joined: Aug 2006 Posts: 2,141 junction city oregon	More info on the engine? For 300 hp or so a 650 is sufficient.

Re: what carb for a 408 [Re: bill8121] #1269736 07/17/12 11:00 PM 07/17/12 11:00 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Will a 650 eddy be sufficient? I know there's better but that's what i have. J heads for now. Air gap intake and headers. Haven't picked a cam yet. What is the engine going in and is it a race only or street/strip or street only... 650 is small but it will give you good response

Re: what carb for a 408 [Re: MR_P_BODY] #1269737 07/17/12 11:33 PM 07/17/12 11:33 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman pro stock
Wedgeman pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	Il really like the 800 cfm Holley 4780C Dan

Re: what carb for a 408 [Re: Wedgeman] #1269738 07/17/12 11:46 PM 07/17/12 11:46 PM
Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca B bill8121 OP member
bill8121 OP member B Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca	It's an 82 d150. 3800#. Looking to get 400 or so horse. Figure if i jet it right it'll get the job done. But then again it works well out of the box on my 318 with a lopey cam and j heads. I didn't build it. I just bought it cus the tq was spent. Just hoping i didn't have to buy a new one.

Re: what carb for a 408 [Re: bill8121] #1269739 07/18/12 12:46 AM 07/18/12 12:46 AM
Joined: Jan 2003 Posts: 6,266 Renton Washington T Triple Threat master
Triple Threat master T Joined: Jan 2003 Posts: 6,266 Renton Washington	It will work, but you will probably want to upgrade it in the future for more power, it will be holding the engine back. -Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA

Re: what carb for a 408 [Re: Triple Threat] #1269740 07/18/12 11:36 AM 07/18/12 11:36 AM
Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca B bill8121 OP member
bill8121 OP member B Joined: Oct 2011 Posts: 167 Rancho Cucamonga ca	Dang. Oh well, i keep hearing that a holley or demon will out perform an eddy anyways. So with the set up i mentioned a 750 should be plenty? Vacuum or mechanical secondarys?

Re: what carb for a 408 [Re: bill8121] #1269741 07/18/12 11:48 AM 07/18/12 11:48 AM
Joined: Mar 2007 Posts: 12,013 Finally a HUSKER again Moparnut426 I Live Here
Moparnut426 I Live Here Joined: Mar 2007 Posts: 12,013 Finally a HUSKER again	The carb I run on my 408 I think is too big, Its not very snappy off idle. Its a quick fuel thats in the 870-880 cfm range so Ive been told. I really want o sell this thing and buy a new Holley HP 750, or a willys dialajet 750 and see how it likes it. The engine runs very strong and I am happy with the performance, but it just dosnt have that small carb response I think it should have.

Re: what carb for a 408 [Re: Moparnut426] #1269742 07/18/12 12:35 PM 07/18/12 12:35 PM
Joined: Jan 2003 Posts: 6,266 Renton Washington T Triple Threat master
Triple Threat master T Joined: Jan 2003 Posts: 6,266 Renton Washington	Quote: The carb I run on my 408 I think is too big, Its not very snappy off idle. Its a quick fuel thats in the 870-880 cfm range so Ive been told. I really want o sell this thing and buy a new Holley HP 750, or a willys dialajet 750 and see how it likes it. The engine runs very strong and I am happy with the performance, but it just dosnt have that small carb response I think it should have. Want to trade LOL, my 750 HP is too small. The car goes faster with a 1000HP on it. To the OP, yes a 750 should be fine, I prefer mechanical secondaries. -Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA

Re: what carb for a 408 [Re: Triple Threat] #1269743 07/18/12 06:18 PM 07/18/12 06:18 PM
Joined: Jan 2003 Posts: 1,883 Northern OH R rapom top fuel
rapom top fuel R Joined: Jan 2003 Posts: 1,883 Northern OH	I have the eddy 800 thunder series on my 68 charger. It has a very mild 408 and I'm running 2.94 gears. I took it to the track once and got a 13.28 out of it. It runs great with excellent throttle response. Had to do some tuning on it with the carb kit to get it right though.

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