it's a 1989 iroc with Lt1 block and heads and tpi injection i got it from gm and they also installed it they said it would make 315 horse power and now i've add mods throttle body bbk,headers bbk,hypertech chip,kand n filter, 92 camaro trans with b and m shifter, and 3 chamber flows with 4 inch tips, no posi but i'm saving up money also cold air mod and cowl induction. i'm just looking for ball park numbers. and other mods with out going in to the stock motor with such low miles.

 

260-275 RWHP would be my guess.

 

madwolf - you did not take the B&M shifter into account.

I'm thinking 285RWHP.

 

so could i take a ss that is totally stock because this ss lost to a 97 z28 when they both were in sec gear racing and when he droped to first then the ss showed it's true heart.