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800 CFM Q JET FOR 496" BBC 1973 CORVETTE WITH A 4 SPEED STICK

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Cliff Ruggles:
Correct, there are no larger casting side inlet divorced choke models made.  I've seen a few of the later large cfm side inlet carbs modified for divorced choke set-ups (Marine clones), but have never did this myself.

You would really be surprised at how well a smaller 750cfm casting will power the big 496.  I've street and drag strip tested the smaller carbs on quite a few outings, and they run very close to my much larger 1977 front inlet Pontiac carb.

Removing the outer booster rings really helps them out, as this makes the smaller castings flow around 827cfm, but really that isn't needed for what you are doing.

Another thing that really helps but is somewhat labor intensive is to use a longer arm on the primary shaft to operate the secondaries.  This allows for much greater primary throttle angle for street driving without getting into the secondaries, and helps with big CID and towing applications......Cliff

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