Howards or Hughes Camshaft
Where do you think Howards stole their ideas from? LOL Crane too for that matter.
To the OP, this is something you can run yourself ragged on. Just get something that has a good amount of lift, duration in the 230s @ .050 and lobe separation dependent on usage. 110-112 if you want good vacuum signal and street manners, 106-108 if you don't care about vacuum accessories and like a nastier idle. Simple as that, really.