thanks guys!
I'm running odonel medium glow plug, Brazilian Go dealer sugest me to run it.
Run almost 2 galons! I guess my engine is full broken in...
I got the tuning guide from Massive mods site, i'll go to the track tomorrow to tune the engine for the race.
I just remove the shim because my piston was a bit darker.
Check this.
i'm reading all yours help to try tomorrow....
thanks again for all help guys!