My top MPH went from about 108 last year to about 104 this year. This carburetor was rebuilt by cliff, and I’ve had zero problems with it, I’m pretty sure everything is opening properly, and I have verified the full plates open when foot on the floor. again, I know there are thousand things that could be wrong with an engine, but I think my case is simple because I’m only comparing where I was last year, to where I am now with the gearing change. At least that’s what I think. I have the Rob Mick 550 hp fuel pump.
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