[behan]

My engine seems to be set up the opposite way,

Filtered air supply comes through the air cleaner box on the drivers side, and PCV on passenger side,

I disconnected the fresh air supply, thumbed it shut. and still had vacuum on the other side in both the PCV valve, and the hole in the rocker cover,

I guess this means I have an intake manifold gasket leak,
Being that I'm not losing any coolant, could it be the upper intake gasket,
just under the Plenum, where the CPI is? " this would be much easier for me to replace"

Thanks!