I am leaning more towards it being a temperature issue. My upper radiator hose is beginning to bulge on the radiator end...could there be some sort of blockage in the thermostat that would cause this? It is also starting to drip from the engine end of that hose. The clamps are secure themselves, the hose is not loose.
It seems my oil is burning at an increasingly rapid rate. It is leaking very little since the change in rear main seals, but I am having to add oil just as frequently now.
I purchased a mech temp & oil pressure gauge that will arrive on tuesday, this will confirm how hot it is running.
I am new to engines with a carb - so I am not sure if this could be related, but I put a new gasket on the base of the carb and in reinstalling I broke the choke tube running to the manifold. I fabricated my own...could a deficiency here cause my problem? Also, the white sleeve that I put over the tube is beginning to brown (thing the color of a nicely roasted marshmallow)...again, a heat related issue.