1974 duster 1945 holly

That is not a NOS carburetor, it is a "remanufactured" unit with signs of more than the usual carelessness: anticorrosion surface treatments stripped off with quick-and-nasty blast cleaning, then not replaced. That means this carburetor, running on today's gasohol, will quickly turn into a pile of white "metal mould" corrosion, inside and out. Teflon coating stripped off the throttle shaft and not replaced, which means sloppy fit in the bushings and resultant idle/driveability problems. "Remanufactured" carbs have a well-deserved terrible reputation as a pile-of-crapshoot. Once in awhile you get lucky and get one that works okeh…the same way once in awhile you get lucky and win the $45-million lotto jackpot.

The problem is, there aren't really any E-Z/cheap alternatives. Occasionally NOS carburetors (real ones) go by on eBay, at high prices. There are still a few skilled carburetor rebuilders out there who, given a salvageable core, can turn out a good-running carburetor. This, too, is not cheap.

On top of (all) that: the 1974 1945 was an unhappy carburetor right from the start. 1974 was the first year for the 1945, and it was half-baked. Many, many TSBs and updates the first few years.

Sorry the news ain't great, but…that's the news.