Re: 1970 9.9 crysler motor
Do you have fire with the plugs installed while under compression? I had engine analyzers at one time and could see this fire and know it?s possible to fire outside but not inside. I just got a 5.00 spark tester just for this experiment vs needing it. I am interested in seeing if the 5.00 instrument works and how long. Plus, it could become handy.
Most of all! If you have fire, prime it, it should fire even if it does not continue to run. This would help eliminate some possibilities in your challenge.