It's intermittent as it runs down the road fine...no change in performance..IF you rev the motor at a light a bit constantly, it wont't stall. 8 ot of 10 times it quits without warning..other 20% it seems to load up and then die. It does not give any problems ever when warming up. Only after running a medium to large distance and then quits after like idling down to find a parking space or waiting at a light. Temp gauge is always around 185 to 190 when it stalls. And again, it is not every time....just always at a bad time...lol
it's definetely a holley dual feed double pump of some model series as I need to know what series it is because I'll either get a new base plate or buy a new carb

It's an automatic and once had it idling at 1000 rpm and it died. Reving in neutral and it won't die.

Mechanical advance.

Problem just started a few weeks ago