Camshafts are chosen more for RPM range (powerband) the engine will run in, and the cylinder heads used, plus induction, than the stroke of the crankshaft. Easy bolt on stuff for stock engine would be 1.4 rockers, check valve springs before doing this part though, dual kadrons, good header 1 3/8 size tubes. Of course, before doing anything make sure you have a good stock engine to start with, "you can't make chicken salad out of chicken soup"
as the saying goes. Hope this helps some.
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1970 T1 W/MassIVe 2913cc RAT/?EFI? w/direct fire (very soon) and 915 trans
1962 SC 1776cc SP 944NA brakes, 993 wheels
VKG