I don't know how much clearance I've got. I'll have to pull a couple springs and find out. This engine did have a MP .590 in it years ago. I'm guessing there has to be something a little more modern available now?

Its got good rods, and crane gold rockers.

RPM? Can't remember, lol, the car has been hibernating for years. I don't think the car has been down the track since 2001-ish.