408 hp/tq
#6
I would agree that the numbers are conservative. But if I came on here and said It will make 600+ then I would have guys jumping down my throat that I am full of crap and what not. Therefore a 550 hp mark should be a reasonable guess.
#7
TECH Fanatic
iTrader: (7)
550-565whp should be easily obtainable, but you need a good tuner of course. If I have a MS3 on a 114(237/242, .603"/.609") and bumping that to a 250ish+ cam with better flowing heads unlike the PRC 5.3s I have on mine. Hell I still made 500whp on my setup. But you will need a unreal tuner closing in on 600whp with a NA 408. But if your auto, higher #'s like that will be hard to get.