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Hi Jim,
I think your problem is probably the lever on the carb being incorrect. Most of the time when these carbs get rebuilt, the wrong actuator lever gets installed . The correct choke rod is a straight rod, I have a few originals and I've run into this problem before. If the lever on the carb is flat, you will have alignment issues. The correct arm or lever on the carb should be stepped outwards for clearance. If this doesn't explain the problem adequately shoot me an email
[email protected] and I'll send you some pictures.
Chris
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Rick's picture above shows the correct stepped choke fast idle cam cage...problem is, they're about as rare as gold-plated chicken lips. Holley (in their infinite wisdom) doesn't even use (or even produce!) the correct stepped cage for their current release 4492/4557 carbs; they use the more conventional `66-`69 style cam cages.
The straight cage obviously works, you just have to jimmy the choke rod a little bit to get it to fit. Obviously not the ideal scenario, but until Holley (or someone else) reproduces the correct stepped cages, whaddayagonnado?
Eric