You can make a three carb setup work. BUT you have to start with carbs that flow correctly for the engine. Read Jerry's comment about two carbs each being two thirds the size of the original. To make 3 carbs work, each needs to be approximately one half the size of the original.

Jerry is right about the single carb. With a two or three carb setup on a basically stock engine, IF YOU DO EVERYTHING PERFECT, you may gain 8~12 percent. If you DON'T do everything perfect, you can easily LOSE 25 percent!

I will disagree slightly with Jerry about low speed and midrange torque. It can improve SLIGHTLY because of better volumetric efficiency across the entire RPM range, but only after spending lots of time (and money) chasing perfection.

Is the end worth the means? With duals, maybe. With triples, probably not.

This article may help explain:

http://www.thecarburetorshop.com/Dual1barrelcarbs.htm

And also this one:

http://www.thecarburetorshop.com/Triple1barrels.htm

Jon.

Last edited by carbking; 10/24/2012 9:29 PM.
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