Small Block Oil Pump Priming

Well the drill I have is rated for 3000 rpm with no load and it's going a lot slower when it's turning the oil pump, maybe 1500 max.

60 psi hot idle is kind of excessive oil pressure. Unless you run that engine in excess of 6000 rpm all the time you are just eating up horsepower that would normally go to the rear wheels. The books I have read do not recomend a HV pump in small block mopar engines unless you are turning big rpm's.