I have a 72 with a 250 and automatic. It has a rebuilt dist with a pertronix ing module. The problem is an intermittent rough idle. It will idle well for a while then gets very rough with the vacume guage reading "late ing timing". The timing is set at 10 deg and otherwise runs well. I do also have an intermittent lifter ticking. I have not been able to link the 2 together as they do not always coencide.:16suspect I would like to get your opinions before I replace the module. I also have a dsII dist and moduke from a "running" car that I could install. I understand that the hot wire goes to a switched ing source. any one know of a good place to locate this? Thanks as always
Mark, it sounds like a carb. problem. did you check the filter? if this helps please let me know...i so want to be right once ......
The filter is new, but I have a good known carb I can swap out and see if that is it. Thanks Ill let you know
