I can only think of one “bracket race” std port motor I’ve done. The rest I can remember were all milder street/strip combos.

This was a new shortblock and some updates to the owners heads.
493, 14:1, medium roller, gasket matched Victor, stage 2 rpms(300cfm).
Made 615tq/665hp with a 1050 on an adapter.
The owner had just bought a new AED HO750 that he was going to using on the motor....... I seem to recall it didn’t lose much power like that..... maybe 10-15hp.

Went in a 3600lb 65 Belvedere, Cal-Tracs, 10” tire...... best of 10.20’s with the 750 carb.

First or second time out it did a pretty big wheelstand, and at the point of maximum height, it broke the pinion gear in the 8-3/4 and came crashing down.
New S60 after that.