Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2313770
05/30/17 08:13 PM
05/30/17 08:13 PM
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The mech sec 450 Holley #9776 is not a double pumper The lean tip in has to be covered by the single pri acc pump. Really their not double pumpers? It's nearly the first thing on the box they're sitting in, in gray bold "double pumpers" but I could be wrong, I'm not sure cause it is the #9776. Can you send pictures on here? Don't check the box, check your carbs. If they have accelerator pumps in the front & rear bowls they're double pumpers.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2313773
05/30/17 08:19 PM
05/30/17 08:19 PM
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FuriousMopar1968
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Considering all options I may try to sell the 450's and get the vacuum 600's. What's the best one to get given my circumstances?
1968 Plymouth Fury - 440 Dual Quad Tunnel Ram
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: GODSCOUNTRY340]
#2313777
05/30/17 08:24 PM
05/30/17 08:24 PM
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FuriousMopar1968
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Looks like it's a single then. Yeah I guess I best start going the vacuum route then. Thank you saved me from a lot of headache later haha.
1968 Plymouth Fury - 440 Dual Quad Tunnel Ram
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2313780
05/30/17 08:27 PM
05/30/17 08:27 PM
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Your 450 carbs are made for multiple carb applications but they're not a good choice with your convertor, car weight and gears. A better choice would be an 1850 600 as listed above.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2314144
05/31/17 01:19 PM
05/31/17 01:19 PM
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What kinda power you think I'd get out of this set up? I was looking and it seems like it's around 500 horse but not sure, anyone have a better idea?
1968 Plymouth Fury - 440 Dual Quad Tunnel Ram
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: DaytonaTurbo]
#2314188
05/31/17 02:54 PM
05/31/17 02:54 PM
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Start familiarizing yourself with holley tuning. I wouldn't expect to plop them on and have them run perfect right out of the box. Not to mention how much more of a hassle it will be to tune the Holleys compared to a set of Edelbrocks. The Holleys will have to be removed and the fuel drained to get the bowls off for jet and metering plate changes. Edelbrock metering rods are swapped easy enough and will only need the top off for jet changes.
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2314222
05/31/17 04:36 PM
05/31/17 04:36 PM
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What kinda power you think I'd get out of this set up? I was looking and it seems like it's around 500 horse but not sure, anyone have a better idea?
If those are stock heads on there, I don't think you'll be far over 400hp. 430 sounds about right with good carb tuning, good cam and ignition timing.
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: DaytonaTurbo]
#2314244
05/31/17 05:35 PM
05/31/17 05:35 PM
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What kinda power you think I'd get out of this set up? I was looking and it seems like it's around 500 horse but not sure, anyone have a better idea?
If those are stock heads on there, I don't think you'll be far over 400hp. 430 sounds about right with good carb tuning, good cam and ignition timing. I'm not sure all I know is they're ported and polished. Didn't the factory high performance 440s make 410 at the flywheel? Seems like all this for 20 more horse is kinda low haha. Edit: Removed my valve cover the other day and it looks like it's the 346 head.
Last edited by FuriousMopar1968; 06/01/17 08:53 AM.
1968 Plymouth Fury - 440 Dual Quad Tunnel Ram
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2314276
05/31/17 07:21 PM
05/31/17 07:21 PM
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If the heads would really be killing it that much anyone have any suggestions for a set of heads that would work well with my build? With in a mildly reasonable price if possible haha, The number of 500 ponies is where I'd like to ideally be at.
1968 Plymouth Fury - 440 Dual Quad Tunnel Ram
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: B5 Bee]
#2314334
05/31/17 10:08 PM
05/31/17 10:08 PM
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Start familiarizing yourself with holley tuning. I wouldn't expect to plop them on and have them run perfect right out of the box. Not to mention how much more of a hassle it will be to tune the Holleys compared to a set of Edelbrocks. The Holleys will have to be removed and the fuel drained to get the bowls off for jet and metering plate changes. Edelbrock metering rods are swapped easy enough and will only need the top off for jet changes. The Weiand tunnel ram allows you to mount the carbs sideways to facilitate bowl removal.
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: FuriousMopar1968]
#2314433
06/01/17 01:34 AM
06/01/17 01:34 AM
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Back in the 70's I ran a 440 in a 64 Fury wagon with a tunnel ram with 2 - 750 double pumper Holley carbs, I did run a 4 speed with 4.88 gears. I didn't have a problem on the street or the track but one thing I do remember is spark plugs only lasted a week and twisted off a lot of u-joints.
it's ok to butt heads, just don't do it with a butthead
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Re: HELP with 440 Dual Quad Tunnel Ram
[Re: DaytonaTurbo]
#2314502
06/01/17 11:16 AM
06/01/17 11:16 AM
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Gotcha I'll just have to dyno it once it's all said and done. I don't know what was done and I don't think I can unless I start tearing things apart. The only facts I have is that it's got the the Weiand triple Bug catcher air scoop, 1987-Weiand high rise Tunnel Ram, Dual 600 Vacuum Holleys, 21-225-4 Comp Cam, 1 3/4 headers to 3 in collector, 3 in H pipe exhaust to flowmaster super 10, compression probably around 9:1 assuming stock, and evidence that head work was done on 346 1971 heads (double springs and the port and polish, but as stated no flow sheet.) we'll have to wait and see how she takes it.
1968 Plymouth Fury - 440 Dual Quad Tunnel Ram
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