Nuke

You'll end up spending more $$ to get close to 400 HP, crank OR wheel, on an NA S197 then what you'd spend on an SC. Plus, after all that internal work, you're likely to have more reliability issues than if you went SC.

350 RWHP is about the typical "best" for most NA S197's unless you intend to go deep into your wallet.

DCzapla

OK Well mabe i need to csale back my plans from 400rwhp to 350rwhp. I forgot to mention the car already has a BBK 62MM THROTTLE BODY. Not sure how much difference that makes.

stealth_GT

it's only 350whp full bolt on's, but you're also gonna be 150lbs lighter on the front end without a blower and massive intercooler/piping, extra coolant etc.

The 3v isn't a new 5.0 where you can actually get 400+whp almost too easy lol