Maximizing flow limited combos?

I rarely see people running cams like we did in the 1980’s to get junk to run good. Today guys thing a .650 lift cam is big but we ran 332 duration ( [email protected] ) and .750 lift with 906 heads on our big blocks. My combo that ran 9.82 in my 74 duster had a lot of Chevy and ford guys losing sleep. Mother Mopar gave us a pretty nice combo to put together with stock blocks, stock cranks, stock rods. Lol. Local dirt track racers thought we were crazy running cams like that.