We have a OLD (1985-ish) 800 Holley on our 416 small block bracket car. It was a very low use unit, but freshened and we gained 40 cfm on the bench when the motor was built. That said, it works pretty good and has produced some decent timeslips but we are thinking a "race" carb might be an upgrade this winter.

Who's/what 4150 base Holley are you running and why?

Are the Proform carbs any good?

What do the Holley HP 950's really flow? Not 950 I've heard...