I have a 351W. with a Milodon high press&vol.
oil pump,windage tray and baffeled trap door road race pan. I have run both 20/50 and 10/40
oil. I have a S.W. mech
oil press. gauge so the real pressure readings may be suspect but the relative drops should be reasonable. On initial start-up I see 60psi, as it warms up the pressure drops to 40, at idle it can go to 30. Is a 20deg drop reasonable from cold to hot as it will not go much over 40 even at 5k? Thanks for any input.