[bmpmdf]

A well tuned and balanced combo is always a good thing. I like a just as easy 375-400 hp combo as the 300 hp combo myself. Once you get into changing to screw in studs and valvesprings, (which any aftermarket cam with more than .440" lift needs) it might as well be to make the hp to show for it. You can still use the Crane "drop in" springs even with the cam along the lines of the high 220's of duration at .050" lift. Oh. don't even go by the advertised duration numbers as they are not comparible from one company to another. Go by the duration at .050" lift numbers and the lift at the valve rating. When possible, duration at .200" lift is nice to know, but not many companies will let you know those. The cams I would use out of what was mentioned is A) The Melling 068 replacement (part # SPC-7, won't have to change valvesprings with it), B) the summit 2802, (but you need new valesprings to handle it) or the Crower one listed earlier. If you pull the heads to change valvesprings, enlarge the intake pushrod holes toward the rocker arm stud so you can later add 1.65 rocker arms without binding up the pushrods.