Originally Posted by
bonesbs
I know the .21 novarossi engines are mostly shimed at .80 and I've read after breakin you can take out a .10. With the .28 Plus 28-7T engine it is shimmed at .60, as once once the breakin is completed is it best to leave it shimmed at .60 or are people also taking out a .10? I'm running it in Late Model oval racing.
Dont deal with many .28 engines myself, I know mark smith of powerhouse does , maybe send him a pm unless he gets on here and answers first
I might run one of our X28 engines and experiment so I know, just not much practical use of .28 engines in offroad
