Well I finally found the problem, a blown intake gasket on the passenger side. The strange thing is the gasket was made up of two cork/rubber gaskets sandwiching a plastic spacer in the exact shape as the gaskets. This rendered the rear bolt too short to catch the threads on the bottom, so the gaskets were not compressed equally. Don had gasket issues (2) also(previous owner), now it makes sence. Whoever replaced the stock metal gaskets with this setup didn't check the length of the bolts to make sure they caught the lower threads. Has anyone seen this before?