W2 heads on a 318

Call me crazy but I read this as wanting 550hp on a stock-stroke teener, with W2s. How you gonna make that number without lottsa revs?
Or did I misread this too? Sux to be me then,lol

Sorry if I made it unclear. I was planning on 550ish with the 408. It'll take a bit to get that from the 318, but if it's possible why not. I'm not afraid to spin it to get there. I was mainly wondering if the w2s are worth even the thought of putting them on the 318. I guess enough compression, cam, and rpm they'll be fine.