Hey guys I have a 420a with a Turbonetics T3 T4 turbocharger I can't seem to get it to stop leaking oil from the exhaust side into my downpipe I have a 5/8 drain with a 3/4 fitting on my pan so there should be plenty of flow. its mounted straight up and down my oil pressure is only at 40. I tried reducing it down to 20 psi and that didnt work either. Just wondering if anyone has any other suggestions I've also rebuilt to Turbo so I know all the seals and piston rings are good it just seems like it's not draining fast enough