SBC Head Question

Ok gentlemen I need some advice from some Chevy experts. I'm about to port and polish some late 60's SBC fuelie heads(2.02 valves) for a friend. Besides all the normal port and polish work is there anything specific on these SBC heads to work on to gain flow? I know all the little stricks to make SBF heads flow no one are the big problem areas of SBC heads?

Just match the runner to the gasket and watch out for water passages. No real trick. You just can't go crazy on the exhaust because the two midle ones are so close together.