Good morning Joerg - the 1961 (possibly later as well) Canadian Pontiac used a Carter type AS carburetor number 3114s.

The type AS was basically designed as a 60,000 mile "throw-away" unit; rebuilding one is a nightmare.

Regards.

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