I think we've all deviated from stock engines to some degree Bob. And yes anytime you make more power you create more heat.
I think my father went to the extreme side of things. My Cold Case post is a good read if you get time. For him, with 571 cubes and 724 HP, I didn't think that engine had a real good chance of running as cool as even a rambunctious 455. Yet the stock fan shroud and clutch fan has shown to be the best setup on it to date. No need to upgrade that. Matter of fact electric fans only made it worse. It's running so cool now, even cooler than smaller engines with less HP in a lot of cases, and we are in the same desert heat.
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