Slow build 71 Scamp 440

If you don't have the heads yet. the Trick Flow 240 with Hughes rockers would be a better choice and put the 440 over 500hp.
I would definitely love a set of those don't get me wrong. The cost is a bit prohibitive. We're double the price and after exchange yikes. But I get that's the desirable combo. Mancini even has them in stock.