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I have found through the years that many carb problems can be solved by adjusting the fuel pressure to 5 psi at the carb inlet, installing a good filter like IC2 said and adjusting the ignition timing for more initial at the crank if you're running any kind of cam more than stock. Here's a chart from Barry Grant that shows how much crank lead to put in the motor....
http://www.barrygrant.com/demon/default.aspx?page=5
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Berry has gone under, the BG tech advises that anyone wishing to get tech information should move on that quickly because there is no specific time as to how long the web sight will still be available .... fyi
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So what are the advantages or disadvantages of a dual or triple carb set up?
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performance wise probably nothing .. single carbs can be had plenty big enuff to do the trick .. multiple carbs just have a " wow " effect
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Except for fuel injection, nothing works better on an engine than a properly matched 4 barrel carb and intake, taking into account smoothness, reliability, economy, and cost. But they just aren't as "cool" as a couple or bunch of carbs perched atop a motor, expecially in a hoodless car.
Hot rods, by their very nature, are compromises in all respects. They are not as safe, comfortable, economical, or sensible as the stock passenger cars we drive daily, and we know that going in. But that is not the reason we build them. We build them for the excitement and the looks we get from every other driver on the road who isn't having as much fun as us.:cool:
But for your setup, stick an Edelbrock 500-600 carb on a good dual plane intake and it will do everything you want it to do.
Don
Oh, and I saw Richards comment about the 5 psi being right for an engine and he is dead on. I just pulled the Holley 12 psi pump out of my 27 and put a Carter 5 psi in and the car runs better and is actually getting better fuel mileage, considering the 2 x 4 setup and 4:30 gears.
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Thanks for the info. I was always curious if the multiple carb set ups did anything other than look cool.
I've got an Edlebrock Performer intake on it now with a 600 Edelbrock carb. I think the next step if I want to make more power is getting aluminum heads and a roller cam.