[68 P.O.S.]

I agree with the suggestions so far. The fan shroud is a must for proper air flow over the rad, your initial timing definitely needs to be increased to at least 12 degrees, your temp gauge needs to be verified to be sure are you really are reaching those temps, and your vac advance need to be on manifold vac as it also helps with cooling at idle and low load. It sounds like your current fan, fan clutch, and radiator should be more than adequate for your engine. You said it has "some sort of cam", do you have any idea what's in it?