OH, almost forgot. I have made ONE mod. I am running NGK TR-6s at .035". This is the NGK equivalent of the AGSF 32C, which is a Tempo plug, but it fits the PI heads perfectly. Plus, the side electrodes burn off and kill the cylinder before detonation can hammer holes in pistons or blow away ring lands. We do NOT compromise on the use of this plug in ANY blown or turbo'd or Nitrous injected engine.
This is EXTREMELY important.
This is EXTREMELY important.
Last edited: