I have never rebuilt one before but that was my plan was to learn and hopefully succeed. If I need to send it out for machine work then I'm okay witj that. Any suggestions on if I should leave heads bone stock and just do cam and lifters?
Depends on your ultimate plans for the motor.
The heads will need to be checked- 308s are prone to cracking, so even if they look okay make sure. Springs and retainers will need to be replaced to get rid of the valve rotators anyway, so follow the cam manufacturer's advice on spring specs. A nice 3 angle valve job and maybe some cleanup/ gasket matching at the ports and you're home free for a DD. Factory lifters are decent, have heard some stories about aftermarket- since it's a roller you can get away with the factory stuff, replacements are cheap if there's issues. Unless you're going with a flat tappet cam...
