CFM & MPG Carburetor myths.....

Exactly, forget all the cfm formulas for anything racey...yes faster with 850 than 750 and everyone in the class I ran in said my carb was too big. Even a guy that ran a Rover 3500cc V8 put my 850 on and ran 2/10tnths faster, he couldn't believe it, were talking 215ci but it was astick car and he revved it to the moon.


The formula was wrong when it was written. The formula is wrong today. It's that simple. But the math nuts will never admit to it. But it is fact.

And the TW and QJ are emissions carbs designed to help with fuel economy.

The spread bore design is inherently flawed.