64 valiant carburetor

It has grown very difficult and expensive to get hold of a good 1bbl carburetor for most any Slant-6 application, especially the pre-'67 ones with the rotating-rod throttle setup.

There's that expensive new one out of Argentina, which with a bunch of cobbling and hacking can be made to mostly more or less fit and kinda hook up and sorta work. It's a copy of a Holley 1904, an ancient, primitive old tractor carburetor (also used on a a fair number of cars that might as well have been tractors).

"Remanufactured" carburetors have been junk for a long time, especially ones old enough to have been through the abusive "remanufacturing" process multiple times.

A new old stock carburetor would be far and away the best option; those require patience to find and money to buy. You don't necessarily have to have a 1964 carburetor; what you need is one with the throttle lever configured to accept the rotating-rod setup, and with the large nipple for PCV. So that's some '61-'62 carbs, and many '63-'66 carbs, and some '67-up carbs (made with throttle levers that'll accept either the rod or the cable; took 'em awhile to figure out that was a smart idea).

Carter BBS and Holley 1920 carburetors were both factory-installed on 170s and 225s starting in '62. The BBS was the better carb design, especially starting in '64 when the already cost-engineered 1920 was cheapened further, but at this late date you take whichever one you can get in better condition.

Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download.