The other day I shipped a Nitrotec to Mark for a pinch, a rod and a mod. I just received the parts back today and all I can say is, I can't wait to get some nitro running through it! He modded and filled the crank, worked some magic on the sleeve and cleaned it all up. Along with the TKO ceramics he sold me, this engine is mint for the upcoming season! On top of it all, between me shipping the parts, the work being done, and the return shipping not more than nine days passed. It's almost unbelievable, my hat is off to you Mark! I will update performance ASAP.