Quote Originally Posted by kmac View Post
Hey Dave, how aggressive of an engine will a tbi system handle? I assume there is a limit to how big of cam one can use?
I think for a performance engine, 8 injectors for a V8 engine is better than 2 injectors for a V8 engine. Very few of the TBI systems I've tuned has been to the Dyno, but the best Dyno results to date was 335 RWHP. The The Vortec SBC was built with a roller Comp Cams computer friendly cam with .480 / .480 lift, aftermarket Vortec 4 barrel intake using a TBI adapter plate, and 670 CFM throttle body with 80 lb. injectors. The original 1227747 computer was upgraded to the 2nd generation TBI computer 16197427. The 16197427 provides fuel and spark tables to 6000 RPM's. Overall drivability is good.

dave w