Have 340 stroker engine and been having trouble with it kicking back occasionally when I go to start it. I took the distributor cap off and saw where the rotor fires on the pins for each cylinder only goes about half way across. It is a new msd 8388 vacuum distributor. How can I check to see if it is out of phase and how can I fix it ? Have read that msd had a problem with this on some of there distributors anyone know anything about this
