jkulhanek, DaveG55, gm72, and lstRacerX, your advice is beyond awesome.

Thank you, I appreciate the input. No matter how long anyone has been in this, their is always something new to learn.

BTW, jkulhanek, I my REVO runs great at 300ish and people I race with say I'll blow my motor.

I know my engine and its potential. I agreet with you. But 420F, WHOA!!!!!!!!!!

You are the new Nascar champion; talk about really enjoying the full potential of an engine.