Originally Posted by 06murder

stock bottom 5.3
tr220/220 112lsa
918 springs 5.4 pushrods
fast intake 90-102 t/b
pacesetter l/t with 3'' pipe
42lb injectors
k/n
and may be GENX 205 heads from trick flow
and a tune from nelson..what yall think....possilbe of lil over 400 rwhp?

Originally Posted by 1slow01Z71

My buddy with a badass heads and cam 5.3 with a bigger cam and in person tune couldnt make 400rwhp, only 393 IIRC. Its possible but youre going to need a good set of heads, a good intake and a bigger cam.