Ah ok, That's a big gap! I think mine are at .040 or .045. Just pulled some plugs again after hauling a couple heavy loads of lumber....load on truck and load on trailer....plugs are still looking new.
![thumbs up](images/smilies/way_to_go-1308[1].gif)
Did notice some carbon build up on one around the ridge....but nothing to be concerned about. I'll post some pictures of the load in my build thread. I was joking about a 750. haha The 600 is plenty for that motor, not enough RPM to justify the air....but those jugs sure draw some vacuum!