360 question

Not familiar with the cam but if the lift is .520 or less it should work.

I would suggest that even though 64k is low miles, what you can pick up with a fresh valve job is pretty amazing. If you have the intake off you are 20 head bolts and 12 exhaust bolts away from taking the heads off. I used to charge 475.00 to clean, mag, 4 angle valve job (for mopars) install guides, surface and assemble with positive seals and new locks.

415.00 if you don't need hard seats (I don't think you would). So either way it's not a lot of money, you get new guides and seals, a fresh updated valve job and a clean surface.

Your that far into it. Give it some thought.
It's a 270/270 - 420/420 cam it seems like a pretty mild cam but I wasn't sure