What's the best gap for a TR6 for a N/A application?
I gapped my TR6s same as the factory spec Corvette setting of .050"
I believe TR6s are gapped to about .035" out of the box. I have heard that plugs should not be gapped greater than .015" wider than the way they come out of the box (electrode allignment problems), so, .050 is about max.
TR55s are manufactured with a wider gap, so useing the stock .060" is not a problem
Remember, the LS1 coil packs are a very efficient ignition system. They don't need real tight plug gaps unless you are running lots of boost or heavy hits of nitrous.


