I have a 99 GT with K&N c.a.i, accufab 70mm t.b. and intake plennum, port polish heads, frpp headers, bassani x pipes, magnaflow catback, frpp 4.10's, hypertech power programer. i'm having new cams installed (comp cams street/strip modular extreme energy cams) also new sprins and lifters. how much hp increase can i expect? and will it increase torq as well. i should of had it dynoed before and after, but my timming belt was loose, and since the car was already half way stripped down, i figured go with the new cams.

 

id have to say anywhere from 50-70 rwhp increase. maybe bigger with blower.