Indy single line pickup, 7 quart milodon pan, 8 quarts total with filter. I am running .003 on mains, .0025 on rods. I have a .050 jet in each head feeding harland sharp rockers. 440-1s. Brad Penn 15-40, wix racing filter. I changed the guage to a manual, have 35 lbs at idle steady hot, throttle open I can see it go to 80 then drops to 60 like the pump bypass opens. Is this ok or can I shim the spring in the pump. Melling pump, Indy cover. Galen