first of all, i've never built an engine before... ever.. my goal is to hit around 420-ish HP out of a 355 (.030 over)

first, what type of pistons? what compression?

i can get patriot heads for 650 bucks... and i know their springs can handle up to a 500 lift cam..

what cam? are roller rockers necessary? (i hear they get a HP gain by using roller rockers, but i don't know if thats myth or not)

what intake?

what sized carb?


basically, what would i need to achieve over 400 HP and TQ on a 350 engine? i know it would be easy to get it with a 383, but trying to avoid the extra hassle.


p.s. would like this motor to be fairly streetable, thanks in advance