I had a similar problem. Traced it back to a faulty vacuum advance(diaphragm leaked/failed) on my distributor. Follow the vacuum diagram and make sure that you've no leaks and that all hoses are going to the right components. A common problem can be traced back to the throttle body sandwiched gaskets and the butterfly shaft seals leaking. I'd advise rebuilding the throttle body completely and change out the vacuum lines.
Mar 27 2015 04:05 PM
This user name it linked to firstname.lastname@example.org but that not the e--mail I use, couldn't get authentication sent to email@example.com so I registered again with this user name, looks like a nice forum, sure wish I could participate!
Mar 28 2017 07:00 PM
This status update has reached the maximum number of replies allowed