rebuilding a rebuilt slant

I recently purchased a rebuilt slant with the intention of just dropping it in my 72 swinger. After thinking it over I have no idea what it was built for. *I purchased it from a parts re builder in Michigan and they don't rebuild engines. They acquired several of them in a surplus deal. The motor is setting in a crate with plastic and some old detroit gaskets. The guy said that that should date it as detroit gasket hasn't been around for quite awhile. All I really know about the motor is that it's a peanut head 225 long block. *It's been bored 60 over and the rod and mains are 30 under. *So what I would like to do is have the block decked and get a new cam have that installed and degreed. *my machinist said that I could get the compression up to 10 to 1 and run on pump gas if I back off the timing a bit. I plan on reusing all the international components. I have a offy 4 barrel intake and no carb yet.
Does anyone have any suggestions as to which cam will work best with this compression? *Has anyone built a high compression slant that runs on pump gas? *How high can I get the compression and have everything work nice? I don't mind it if I have to use premium, or if it is a premium only engine. I should also note that this car is a driver however I would prefer it to be more wild than mild. One other thing I should mention is that I have no intention of ever turbocharging this motor.
All your help will be greatly appreciated.
Thanks, John