need carburetor

[4everblue]

I have a 1966 Chevelle with a 454 iron 049 heads  roller cam that is 230 at .050 and .540 lift the car has a 5 speed 3.73 rear and has a rpm air gap intake.I can get a adapter. I have both a 850 Q-jet 17059201 and a 750 cfm. I need  suggestions on which would be better suited for me and parts to order to get where I  need to be. I do have throttle shaft bushings from a previous project.

[Cliff Ruggles]

I'd run the larger carburetor.  The big block 454 will enjoy the larger primaries, requiring less throttle opening for "normal" driving.

We have everything you would need to set it up, just call the shop when you get time....thanks...Cliff