Quote Originally Posted by champ20B View Post
If the ignition was weak under compression, it wouldn't start as easily as it does and/or idle so good...but jumping fire, and shorting at higher RPMs has been my experience though, until I sealed the coil to plug wire connections with liquid tape or silicon. It could be ignition shorting under high RPM or acceleration somewhere within.

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run it under load at night, its amazing what you see