Head Porting basics

hey guys, this is a pretty interesting topic...how much can he expect to pick up from a mild port job and port matching everything? (in the quarter mile that is, or horsepower numbers roughly)...and wigsplitter, what cam are you going to run in it? i dont want to hijack the thread but what is the max lift cam you can run with x heads?

I'm planning on running a Comp Cams 507/510 lift that I can't remember the duration of right now, I think 24X. I'm not real sure what the max lift is for X heads, but I think I'm alright with this cam. Not sure tho.