Developed an oil leak from the timing cover. Cleaned it up, replaced the balancer seal. Still leaking. Cleaned again, fired it up and watched the leak develop just above the oil pan in front of the brass T for the oil pressure switch and guage and the timing cover.
Pulled the timing cover.... It's a bigger version of a turbo buick timing cover. Amazing similiarities between the AMC 360 and the Buick 3.8. Well looks like the gasket blew out on the upper hole which would be the pressure side.
It's apart... New timing chain going in as well as a new oil pan gasket.