Quote Originally Posted by Mike52 View Post
Jimbo, questions regarding your testing method. Do you have ALL of the spark plugs removed, is the air cleaner/filter removed AND is the throttle being held at wide open when you are spinning the engine over?

Mike
Yes Mike that is how i did the test.I was told that me being at 4800ft that if i were at sea level the readings would more like 150 psi.
Thanks