OK scraching my head here! Rechecking the vacumm lines and pluging and unplugin and testing. I found that if I disconnect the vacuum advance line that goes to the dist. from the carb all my issues are gone? I checked the timing and I still have advance? So is there mechanical advance in the dist too? I guess so! Then what is the vacumm advance for? Quicker response? I know I had a inline chevy 4 cyl in my boat years ago which only had 1/2 moon weights with springs (no vacumm).
Clyde
