may not help, but just FYI... the pump puts out a fixed volumn. The filter is packed with cotton swab and is very restrictive. THE filter allows 15% of the oil from the pump to go thru it and dump back to sump. The remaining 85% of the oil goes thru the cam shaft and sprays thru orifices at the bearings on the crank and pistons. There is also an external oil line going to the head that lubes the rocker arms and valves..You dont necessarily need high pressure, you need flow. THe PSI gauge is just a way to verify flow. Filter should have a 1/4 inch steel tube inside it with a 1/8 inch hole (i think) to regulate the flow thru the filter and back to sump. Thicher oil, more restrictive filter, smaller hole in the filter tube, and good pump seal faces are all ways to increase flow and pressure.
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