Mild 360 stalls when I put it in gear.

vacuum leak/ carb issue/ fuel pressure is where i would start

No vacuum leak, I have a Edelbrock 750 on it. I really don't know how to tune that. I think I have the adjustment screws turn out about 3 turns. I tried to mess when them and it starts to idle ruff... not sure.

Fuel pressure is good.

thanks