RE: 4.6 Driving me Crazy.
I sealed it two years ago when first got it. I ran about a gallon in it and got out of the hobby tell now. It ran great 2 years ago but the tunning was all out of whack when I put it up. I'll remember that though when I get another engine about not sealing it unless a problem comes up. How would I be able to tell if there is a air leak?