Lend me your experience

i'd probably send the cam and lifters out for a resurface and regrind to something a little hotter. port match the intake to the heads. a good valve job to go with the "refresh" on the heads. if you've got rotators on the exhaust valves adios those. some fresh springs & locks would be cheap insurance.

if it's within the budget, pistons would be nice. but forgoing that, maybe a reasonable skim on the heads to pick up a little compression bump.

but other than that, standard rebuild practices of: good machine/assembly work, top quality components and attention to detail should yield a very reasonable outcome.