I need schooling - old vs. new engines

I will follow up by saying that I'm not on the "Only gen 3!" bandwagon. I'm a small block guy at heart. Really, truly am. Would love to do a W8 or W9 headed high winder. Just not in the budget. Therefore, the gen 3 stepped in. That was still a little out of reach, but, made it happen. Six of one, half dozen of another.