340 or 408?

THIS is what I wanted to hear. Thank you , Having the 360 block ready to go , I don't have to get taken on a 340 block. Thank you. Would like to get 500-550 hp out of it with my current top end and 11/1 compression. Looking into solid roller as well. Ant info or recommendations are appreciated! Thank You.
I can’t make a cam recommendation, I’m only smart enough to know I have no business doing it. The process of picking one, sure, nail down EVERYTHING else about your build. Head flow, intake, CI, stroke, approx weight of car, rear gear, rear tire size, fuel, static compression, rocker ratio, header size, because you have a stick, no converter to deal with, then realistically what you want to do with it. Then talk to a good cam company to get a recommendation.