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
Have you cleaned up the advance weights? Maybe they sticking just enough to effect low engine speed. Timing could be dropping too much in gear. It looks like an old 4150. Start the engine a blow some air thru the idle bleeds, see if that helps it also. Also sounds like a vacuum leak at base of carb. Might be causing to go lean at idle after it warms up.
