[Dynomite]

Originally Posted by 98indypacer

It might be the spark plug wires need dielectric grease on the inside of the boot. I had the same problem. See this tip from Marc Haibeck. http://www.zr1specialist.com/HAT%20W...on%20track.htm

Here is the same link (left clickable).

Marc Haibeck arcing spark Tip

Did you replace plug wires?

If you continue to find a need to pull the plenum often, eliminate TB coolant at the Injector Housing

See Item #4 LT5 Eliminated Systems