In a typical street engine, not built specifically for high RPM, high load abuse, all you need for oil pressure is roughly 10 psi per 1000 rpm. If a high volume or high pressure pump is installed in an otherwise stock engine, you will more than likely end up with uncontrolled oil burning/consumption and possibly bearing erosion.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
| 
