Carburetor Question - Is this a good call?

I had a 1406 on my 66 formula S with the 273 commando and it was great. No problems there.

If you can find the original 500 cfm avs that would be a good match for the motor too.

Good luck
Just to be "that guy"......original 273 Commando/Charger's used 500 AFB's, not AVS's.