Dyno testing a stock(?) 1972 440

I reread this post, I'm glad our members take time and make post like this for us I really appreciate it . But wondering if we seen this in a magazine article everyone would be calling it bull ****. Maybe those articles aren't to far off the mark after all.
Low power factory V8 have a lot of hidden potential only needing basic hot rodding to get it out. Cam, Carb, Exhaust