Cliff I was studying the camshaft/manufacturer list that I found on line and I noticed the Crower 60242 and 60243. I think I see why you like the 60243 and the fact that they fall in that 110-112 crank degree group. How would the 60243 be in this 421? I will throw in that the build is running untouched 716 heads(3 angle valve grind). Maybe too much static compression? I recall McCarthy rated these heads as the poorest exhausting, I wonder if the 421/716 will act more like an air compressor storing compressed air with the 60243 rather than a good breathing in and out pump. Then is it a better choice to use the 2802?
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