Thread: FE390 Rebuilt Engine. Problem w/oil spray on drivers side valve cover/little smoking

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Jerry is correct the right stuff works better. Take a pointed prick punch and a hammer and make little indents on the rails of the block and bottom of intake this will give the silicon something to hold on to.
The oil thing I had a buddy have the same issue he put the rocker arm shaft on one side up side down. Filling the head with enough oil it could not return fast enough and was overwhelming the valve seals.
When will yours smoke the most. If its when you let off the gas that's when you have most vacume that could be pulling it through the guides or your intake issue but if its the intake you would not be able to idle very well .not sure what or how big your race cam is you should cam you engine on the RPM range you intend to use. Street cars need some vacume They should have PVC system. Race cars just run a hose from breather to one way valve to the exhaust or have a high dollar pump ether way you got to get the pressure out or it will push its way out through the seals.
I use a moroso oil catch between my pcv valve and carb to catch any oil that might pass by the pcv. Don't want it in the intake after 500 miles open the valve and drain it not much but any is better than in the intake.. I have zero oil drip from breather.

Thanks folks for your comments. I got the Right Stuff and will do the the little punch spot technique for sure. I took a sharp box cutter blade and also made some little scratches on the block and intake. Very small but should help also. THe baffle in my valve cover goes down pretty low and is less than a half inch from the head when installed. I'm enclosing an image. Maybe with my higher pressure oil pump I need to cut an inch or so off of this baffle so it's not practically sticking in the oil at the base of the head. Maybe I'm using too much oil in this engine. The oil pan is stock and I was going to put 5 quarts back in and not change the oil filter as it will have some oil in it and it's practically brand new. I am running a pcv from the passenger side valve cover to the base of the carb on the front. This is an Edelbrock Performer intake. Here's an image of the motor and the baffle in the valve cover.

Something tells me your high pressure oil pump is the cause of your problem.