Choke stuck?

[MonzaRacer]

No no no not on the Edelbrock,do not remove the choke, make sure it has a good ground(like do you have any plastic/phenolic spacers under carb, make sure the engien is grounded and make sure you have good connection to a fused ign terminal from fuse box and make sure its not on in the Accessory position only run.
Also the choke cap may be intermittent and they are fairly cheap I had an AFB from a 67 340 Buick and bought and electric chhoke conversion from NAPA, and it used a thermostat that bolted under one of the intake bolts on the water cross over passage, this made it work better.
Later when it got crushed I wired it to fuse box but it came off in like 30 seconds, so by then Edelbrock had thier carbs out and used one of those as they have higher resistance ,hence slower.
You may also have it too tight after it has gotten older, have you tried to back it off a couple of noitches and see if it helps ,also if it work great in dead winter chokes always cause difficulties in spring time as they never come on or go off completely, and if its cool but not cold and its getting cranky driving may cool carb off enough to make it act wierd.
Lee