Inliners International Forums General Discussion Engines 250 chevrolet. Stumbles and stalls after it's warm

I recently pulled my 250 to stop some oil leaks. That was successful but when I reinstalled it it's never run the same (used to run perfectly). I didn't mess with the carb (500Edelbrock). I did have trouble with the timing. Seemed to take for ever to adjust. It starts fine (cold) and runs a tiny bit rough but will idle and warm up by itself. It's just fine on the road until it reaches temperature. Then it stalls and is tricky to start. I need to rest it for a bit then crank it for maybe 3 to 5 seconds with the gas to the floor, when it fires and needs a few feathers of the throttle to get settled in. Only to stall at the next stop sign.

Any ideas? Maybe the timing or vacuum advance? It's a 1966 250, w/HEI.

Sounds like a carb fuel mixture problem. Sometimes when carbs are off the engine, they get jumbled around more than when on the engine. Debris could be blocking a idle fuel mixture port or holding a fuel rod "up" off the main jet with the 500 Edel.

Just a thought.

ALSO CHECK THE ACCELERATOR PUMP AND MAKE SURE IT SQUIRTS WHEN THROTTLE IS GIVEN, THE ALKY IN TODAYS GAS IS HARD ON THEM

Thanks. I'll have a look tomorrow.
B