btcoop

I have oil leaking at the intake manifold gasket both above and below where it meets the cylinder head - leaking along most of the length of the gasket. I've installed it twice now using the Fel-Pro gasket for the 2jz on this 1999 GS 300. The second time I used a high-temp silicone on the gasket with no good results. Motor is running OK and throwing no codes.

The cylinder head was re-planed and reinstalled after overheating. Could this cause mating/warping problems for the intake manifold that I can't readily see?

Could there be excessive crank case pressure causing this? How would I check?

Thanks for your thoughts.