BBCorv70

Manifold vacuum. Going from memory, think it's set around 12* BTDC at idle.

Car is in storage for the winter, no access until next spring. I'm just looking for ideas to consider, things to try next spring. I ordered a heat shield, inexpensive, easy to install, see whether it helps.

Don't think there's an ethanol free gas available in my area.

BBCorv70

I think the timing is 12* BTDC, going from memory. Haven't checked it lately. Stock points, condenser, rotor and cap, don't recall the brand, bought at NAPA.

Milan454

Have you done any work with the jets or metering rods in the carb??