My current combo is a 347ci with a S-Trim pushing 10-14 lbs of boost depending on conditions, 42lb injectors and a Comp blower cam, FPS 200cc runner lenght heads, Edel RPM Performer intake. The car put down 510rwhp and 510rwtq. I currently have a 65mm TB on the car, but have been wondering if a larger 70mm or 75mm TB would give any increase in performance, any input is appreciated, Lee
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