1965 Valiant slant-6 225 carburator

Thanks for the reply, Dan!

Sounds like it very well might be the wrong PCV valve.
Dah... I never even thought of that! I'll look into it.

Sounds like it very well might be the wrong PCV valve.
No. Either take the hose off it and leave it open to atmosphere, or set it up as intended with a canister and purge valve (see here).
I just didn't like it not being filtered, but I decided instead to vent it to the atmosphere with a small engine fuel filter (it's just a screen). That works well.

Sounds like it very well might be the wrong PCV valve.
Beg pardon? What "boost valve" are we talking about?
Haha. Sorry. I mean "power valve" or "enrichment valve".

Sounds like it very well might be the wrong PCV valve.
Reason being, the guy before you didn't know what the hell he was doing. If he had, he wouldn't have crudely sawn off the top of the carburetor.
I actually totally disagree with you on that. I think the guy knew quite well what he was doing, he was just working with what he had. (I picture a guy working at a junk yard piecing the thing together.) The car was REALLY quick with the 'original Motorcraft carburetor', but didn't idle at all. The car was basically set up to do street drags. I probably should timed it before pulling off that 'original' carb. It's not as quick anymore.