Carb Replacement Recommendations
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Joined: Dec 2002
Posts: 53
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From: Port Charlotte FL
Carb Replacement Recommendations
Replacing the Holley 750 dbl pumper on top of the following...
Suggestions?
383
Heads - Wedge/Fully ported, Large Valves
6way comp valve job
11:1
Holley 750 DP Mech.
Weiand Stealth Intake, match port
Running 2:1 Cam2 110
Hooker headers, 4" sidepipes, STS Inserts (caps off)
Crane Roller cam, Scorpion 1.5 roller lifters
0.050 lift, Int lift 0.561, Exh lift 0.561, lobe center 116.0, Overlap 22.0, Int Dur. 250.0, Exh Dur. 258.0
Minimum RPM 3700, Max. RPM 7200, Valve float 7800
500 HP +/-
NOS Cheater 250
TH350 HD w/ shift kit...3.08 rear end
Suggestions?
383
Heads - Wedge/Fully ported, Large Valves
6way comp valve job
11:1
Holley 750 DP Mech.
Weiand Stealth Intake, match port
Running 2:1 Cam2 110
Hooker headers, 4" sidepipes, STS Inserts (caps off)
Crane Roller cam, Scorpion 1.5 roller lifters
0.050 lift, Int lift 0.561, Exh lift 0.561, lobe center 116.0, Overlap 22.0, Int Dur. 250.0, Exh Dur. 258.0
Minimum RPM 3700, Max. RPM 7200, Valve float 7800
500 HP +/-
NOS Cheater 250
TH350 HD w/ shift kit...3.08 rear end
Burning Brakes
Joined: Aug 2001
Posts: 1,002
Likes: 0
From: Bay City MI.
Re: Carb Replacement Recommendations (MGSFJET)
I have learned the hard way on carbs, bigger is not always better... I have a 850DP on my 454 and I don't need it most of the time, since I dont live at the dragstrip!. Figure out where you want to be for revs and then take you motor size, 383 multiply by rpms, example 6000 and then divide by 3456. That combo comes up with about 670 cfm. That is the size carb you should run. As far as what type I still really like the Holley DP's, great performance and looks great. Check out http://www.customrebuiltcarbs.com they can build you what ever and at a good price.
