I have a car that runs a carter 625 on a performer rpm. I keep the carter because its easier to get races when i tell them it's got a flat top 350 with a carter 625 and a performer intake. What i don't tell them is that it's got brodix heads and a .650 lift solid roller. In today's world of 950hp Holleys and race demons, who could be serious with a little carter carb? the car runs 6.40's in the 1/8th on a poor track.