Barn raising

[Captainfab]

Unless you have some different oil pump, there isn't an adjusting screw on the pickup. On a normal oil pump, the oil pressure relief spring regulates the pressure. There is a roll pin that keeps the spring in place. If there happens to be a washer between the roll pin and the spring, take that out and it will drop your oil pressure a little. Or you could just replace that HV pump with a standard volume oil pump. The standard volume pump will be just fine for what you're doing. As a general rule on most engines, you need 10 psi for every 1000 rpms.