RRR,
I have an original 1980 Carter Catalog which has a one page feature on these carbs.
Nowhere is the word 'Competition' used. I have heard that later models had the plate added across the air horn, probably for 'sales'.
Says this:
'The 9501 & 9626 are emission calibrated & certified for emission on a 1971 383 engine with stock Chrysler manifold, factory dual exh & auto trans'.
Happy to email this page if you PM an email address.
The Comp Series 4XXX carbs did not have an auto choke, some had a manual choke & the 500 & 750 version was available without a choke. The 750, #4762, without choke had richer sec jets & richer rods.
