Sorry for my delay in replying, have not been near a computer for awhile. Update: I have checked for external vacuum leaks, and I have thoroughly checked ignition system, which is in tip top order now, though it did suffer from a squirrelly condenser and a weak (incorrect?) coil both of whom were exasperating my problems. Now it fires virtually instantly the moment I pull the choke.
BUT it still will only run at low idle when the engine is cold (i.e. after sitting overnight on a cold morning) and will stumble or stall as soon as I touch the throttle, until it has had time to warm up. Once it has warmed up this issue goes away and runs fine whether at idle or driving. Thanks very much for the tip Jon, I am percolating on this wisdom presently.
-Curtis
Last edited by G.Curtis; 11/21/2023 3:08 PM.