Just got the 67 Belvedere and want a little more lope. She's a 30 over 440, headers, ign. tricked out AFB with an Isky 256 stick. Has tons of bottom end (as most do) but lays down about 5000. And that is OK I have been fast before, I want a good bumpy cam. I'm looking at the Mopar Purple 484/284. Watch you got.