I just rebuilt a 1971 F250 4x2 with a 360, c6 auto, and an after market AC.
I have had constant problems with the engine running hot. So finally, I took out the engine and had it disassembled and evaluated. Well, we found something really interesting. There is a hole on the underside of the intake manifold. This hole is in one of the exhaust runners that heat up the carb. I have had constant problems with large amounts of gas coming out of the engine breather - I thought it was blow-by.
Has anyone run into this problem?
Regards,
David