[John Mullins]

Thank you. Only change was replacing the points with a Pertronix. The engine cut-out problem stopped but the return to idle problem started. All the fiddling with the carbs was my attempt to fix the idle issue.

Think I may buy a new set of points and put those in to see if its the Pertronix module or related to the install.

Your vacuum leak comments are well taken, I will check again.