I need schooling - old vs. new engines

I have a 6.1 based 426 gen 3 that I raced from 2014 to 2019. Dyno'ed 730 @ 7300, 535 @ 5300. Engine is still together, just not in a car currently. Factory juice roller lifters on a 250ish intake/ 260ish exhaust cam. Factory rockers and shafts tied together with the Stanke hardware. Carb with tall Ritter/Drag Pak intake. Heavy ported early 5.7 heads. Best e.t. and mph on same run with 3500ft DA was 10.14 @ 132 mph. 3300 race weight with driver 74 Swinger. So, FACTORY block, FACTORY head castings, FACTORY valvetrain. Not reliable? Whatever. All for 20g. You ain't building 700+ hp LA for 20 or under. Not all new parts anyway. My build was 100 percent NEW parts.