440,

The reason you got a Huh! is that there's no way to answer a question that provides no information. Think about it. It's kinda like "Hey! I need to get to town . . . which way do I go?" Well, it depends on where you are, which town you want to go to, and how you intend to get there. Get my drift?

Call a cam maker/distributor - Comp Cams, Crane or Summit Racing, tell them what your application is, and what results you want. They will specify a cam. Bear in mind, however, that engines are a system. A new cam isn't a fix-all. If you change your cam, you need to tend to carburation, timing and exhaust.

By the way, the old terms of 3/4 race, full race, etc., are pretty much obsolete. They're too general, and don't tell you much.