It depends what you intend to use it for , Cam ,intake, carb, heads & exhaust will all increase performance but they all need to work together .
Stroking it is a good idea also as you can increase compression , 360s never had decent compression & for no good reason a piston to bring them up to 10:1 seems to have been overlooked by every piston mfg , why I have no clue as there are millions of 360s out there , so you can build a 408 CI with better compression lighter rotating mass & internal balance .