Small block bottom build horsepower limit

You would cry if you knew what I paid for my R3 block ready to go, 360-1 Indy heads, 408 balanced assembly, .650 lift solid cam with Schebeck lifters, Indy intake, and a few other goodies. I’m going to lose another one because I’m waiting for my son to buy it as he found it.
LOL... Have been searching online, and all the prices I am finding are 3K and up