White smoke??? Where?

White "smoke" coming from the carburetor if the air cleaner is off is probably fuel vapor.

White smoke from the tail pipe could be telling you that antifreeze is getting into the combustion area; and it will have a sharp odor.

Have you tried a compression test, or a leak-down test?

Jon.

Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
If you truly believe "one size fits all," try walking a mile in your spouse's shoes!
The Carburetor Shop