I said that i know that the distributor isn't original. The 74-76 models came with vaccum advance distributors, and mine is a mech adv. What i ment by not knowing what type of distributor was that i dont know what it came off of, tii dist, or one of another aftermarket variety.
CD's jetting RX works great, and has for the past 4 months since i rebuilt the carb, including resetting the float gap. The car has run like a top ever since. The cap and rotor are fairly new, i replaced them about 8 months ago, and there is no serious wear on the contacts on the inside of the cap, so that is ruled out. Play in the retaining plate that holds the point doesn't sound likely, as it will run great one min and stumble the next, and it only happens every once in a while, and the same RPM. Loosness in that plate would cause it to run poorley more often. I may have not mentioned it before, but after it did this to me yesterday, i motored on a little bit down the road, punched it agian, and it ran fine.
The radiator being clogged or over worked wouldn't have any correlation with ignition issues, misgapped plugs wouldnt do this intermintently, and really and truely dont have that large of an impact. Like i said, i recently personally rebuilt the carb, so i know that the linkage is fine. Choke wise, its a water choke, so there isnt to much linkage there to fiddle with. Does it run hot at high speeds, yeah at 90mph it will kinda creep up on the temp gauge, but that is expected with the car almost topped out.
My main concern was wether the dist was advancing the timing properly throughout the powerband.
The mechanic that works at the shop that i work at pointed me in this direction, and i was just wondering if anyone had ever experienced this happening randomly on an otherwise great running car.