Hi everyone. New man on the block here. I just finished cutting my first groove in the personal license program. The wall on the throttle body looked a little thin so i used the medium bit. Followed Ron's DVD instructions and everything went well. Great engine response, this thing will fly now. Too early to tell about MPG and will sell the vehicle anyway. Plugged the PVC off. Noticed that it has an IDLE AIR HOLE just below the groove, and kind of a large hole at that, so i unplugged the idle air motor connection just to see, but made no difference so i plugged it back up. I really could not see any way to modify it other than just filling it up with JB WELD. Any suggestions. Run the engine up to temperature still not difference, or so it seemed with the thing plugged or unplugged. I will check further for vacuum leaks over the weekend as time permits.