Stop in for a cup of coffee

which engine and how much lift and duration?
For this year i'm just doing a roller 318 with TF heads... with a 222/225 .525ish (can't recall) howards cam.. Next year i plan to either go 390 or find someone to build me a 408 or 426 (really wanna do a 426) if i can find a good 360 block for a good price.. then of course a much bigger cam..