Engine stalls

[Foosified]

This problem seems to pop up once the engine is up to operating temp. I have a rebuilt 350 mated to a turbo 350.

Some symptoms I've noticed:

When first accelerating from a complete stop it's like there is a heavy load for the first second... then it breaks free and accelerates fine.

I think this same symptom is what is causing the stalling. It seems the transmission is bogging down the engine big time. A couple of the times it stalled there was nothing… like driving a 10 hp motor and eventually it seemed like the engine flooded itself then stalls b/c it can get the revs up.

I don't think the engine is the problem because the engine I replaced had similar symptoms.

Is it possible something with the transmission is causing this? Transmission never rebuilt and is original to my knowledge.

I have a new edelbrock 600 cfm carb w/ electric choke and it is running rich, but I am breaking the engine in at the same time so I'm not to worried about that. The fact that the engine is running rich doesn't lead me to believe this is an issue beacuse it runs fine 98% of the time. Stalling only occurs from a dead stop when trying to accelerate.

On a side note what is the best jet size and metering rods for a 350 motor? what size does the Edelbrock come standard with?

Thanks in advance.

BG