I just put a 5.7 350 in a 89 chevy and now am in need of a chip. I is a 350 block bored 60 over with edlebrock performer heads, edlebrock victor Jr. intake, a comp cam with 477/480 lift and 268/280 duration, 1.5 roller rockers, long tube headers and true dual flows on it. It is still throttle body injected. If any one has any advice or info please get back to me.