low to mid 400RWHP LSX

[Flicktitty]

What would be needed to make 420-450RWHP through either a TH400 or a 4L60E, with either a LS1 or an LS2. without nitrous. i have been wanting to do a mid 400 wheel horsepower setup LSX into another car, and then put a little nitrous on top of it.

i'm assuming you will need an Intake (fast?LS6)
Cam unsure if size,valvetrain and some other headwork, then exhaust/headers/etc. also would it maybe be better to just go carb'd LSX?

also what kind of support mods would you need (injectors,fpr,computer,ingnition etc)

i'm gonna be looking on LS1Tech to try and find some of the awnsers but i know there are alot of LSX setup's on here so any info would help.

thanks