Rough Idle Problem- 1967 Valiant

nixonrules said
I managed to get everything back together today, and fired it up without the choke linkage. It seems to be running fine and 100% better than before. I'll have to take it on a longer drive tomorrow to see if it acts up.

In the end, I swapped out the intake/exhaust manifold and carburetor. It took a little longer than expected because I had to fabricate an EGR block off plate, and rebuild the carburetor that was going on the car (which had mud dauber larvae in it with mud, spiders, etc). Very happy with it so far. Thanks for all the help!

I wanted to provide one quick update to this. The car was running well, but still had a slight problem off idle when warmed up. It would hesitate, and sometimes pop and die- symptoms of a vacuum leak. I was finally able to determine that the vacuum advance diaphram was shot. I found a brand new distributor (chinese made) on ebay for about $70. I dropped this in and it fixed the problem.

They must have started re-popping the electronic distributors recently because I don't remember seeing them before.