67, I have a Cliffs Quadrajet on a modified factory intake and its fantastic. Actually Cliff built my 462 but he's not building engines anymore.
I remove all the choke gear on my hot rods. Its not needed on a fair weather car.
Best to stay away from new (clone) carbs with the Pontiac engine.
I have a 9800 series Thermo-Quad but never needed to try it. I hear they run good on the Pontiac engine.