Author Topic: command twin carb mods  (Read 927 times)

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Offline flatlanderfornow

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command twin carb mods
« on: July 22, 2018, 04:39:44 PM »
Our club doesn't allow enlarging the venturi, but we can do most anything else we
want as long as no air enters after the venturi. not a carb expert but is there some things
I can do besides drilling out the jets to get these engines to run better? I'm running a horizontal engine by the way.

Todd Potter

Offline hustler54

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Re: command twin carb mods
« Reply #1 on: July 28, 2018, 06:13:02 PM »
Depending on the use, making sure the jetting is dialed in maybe all you need to do.  I've seen that 14.7:1 A/F ratio leaves power on the table, 12.5-13:1 is typically a good performance tune.  Unless your really opening up the heads and intake ports and turning high rpm's with a larger displacement build, I'd dare to say the stock carburetor will carry you a ways.  What is the engine going to be used for?