I have a 90rs with a new300hp 350 with stock 305 tbi and stage ii chip, blaster ii coil, 8.5mm wires, k&n filter, underdrive pulleys, hedman heddersw/ypipe, hiflow cat, 3 inch flowmaster exhaust, 700R4, and those darn 2.73's. What do you think will be the outcome?
What are the specs on the heads and cam? Also, this would be better off on the drag racing board in the future.
This motor was a crate motor from scoggindickey chev. and the heads are stock tpi heads it said which has 1.94/1.6 and the cam is 208/210 and 474/480. Duration needed to be mild due to the TBI.
Supreme Member
um 14's probably. why do you have a stock tbi setup on that kind of motor. i dont think stock tbi will feed that kind of horsepower.
Member
mid to high 14's,,remember all these GM crate motors are DYNO HP,not NET HP.300 hp on a dyno with a perfectly tuned carb etc.And the usual line.........take it to the track and find out

I plan on beefing the TBI up a little. I am working on finding out just how much lb/hr injectors are in there.
