All,
I have removed my exhuast heat riser flap, it was froze solid. I can live with the cold driveability issues with that removed. As for the damp horn gasket, it was more like a fuel leak. I will re-adjust the float level in the next day or so and give it a try. I appreciate all the comments and more is appreciated to help me resolve this. I will give an updated soon.
If the rochester B carb has this problem, has anyone gone to a carter for a 216? I would think the cfm of the carb would be limiting and I'm not sure on bolt spacing.

Thanks,

Brent