Stupid Distributor Questions

Man oh man george, your not having any luck are you?

Do me a favor, fire it up and while it's idling block the top of the carburetor with your hand and see if it dies.

Also if this is a factory 340 set the timing for 32* full advance @ 3400rpm.
Plug vac advance for now.

Have you had an exhaust leak lately by chance?

And have you compression tested all the cylinders and pulled valve covers to see if all the rockers are actuating the valves?

Tell me again when this all started happening and what you may have done [if so] before this happened.

It will die if I cover the carb.
Vac advance is plugged.
There is a small exhaust leak on the drivers side where the down pipe connects to the intermediate pipe. Why? Did you hear it? :D
Compression test showed between 180-200 PSI.
I had the valve covers off at one time, and all the rockers were moving while the engine was cranking, but I didn't start the car.
It hasn't run correctly since I put the car back together after a restoration. Engine is all stock with 90,000 miles if I remember right.

Thanks for the help.

George