slant cam guessing game...428 lift?

Hey, order up an offset crank key or 2 while you are at it! You can use offset buttons on the cam pin but that is more work. IIRC, I used SB Chevy buttons drilled a hole at the cam pin, tapered it back to front, and tapered the button to match. The taper retains it from coming out, but a big washer would probably be smarter.