my 383...????
Sounds about right for your setup.383's don't make magic power.You'll gain with a dual exhaust,FAST90mm ect.It's not about the peak #'s,it's about the midrange/average power with 383's.
my set up is as follows:383 c.i. LS1 block, 3.905 bore/ 4.00 stroke
eagle crank, compstar 6.125 rods, diamond pistons with -2cc relief
fully balanced internals
AFR 205 heads, 11.2:1 CR, .660 lift springs
LS6 intake, ported Tb, 36lb injectors, UD pulley
PAtrick G spec cam...238/240 .605/.612 112lsa
but with stock injectors, gears, kooks with slp lm1
and with the worst tune ever to be had i put down
460hp/450tq
do some searches for intake restriction it will amaze you exactly how much even the FAST 90 restricts, much less the LS6. Your heads are blowing your intake out of the water...get a Momo ported FAST 90 at least, you will pick up some power for sure.
