If you carb is a two barrel check out a Rochester 2g 4 bolt pattern, as for a four barrel you may have to go to an adapter, a picture would help .
I put a Rochester 4GC from a Buick 322 on my '56 312 engine. It was almost a direct swap.
46 Ford, if you want to use your carb. & keep your distributer, contact"Charlie, ny" here on the Ford Barn. He will make your carburetor better than new & you can use your stock dist.. He KNOWS HIS STUF. Send him a p m & he'll answer back promptly. mike
Hotrodart,
What did you do for the correct vacuum to the distributor advance diaphragm ? Or did you swap to a later distributor ?
Sal