Check this site out, http://www.mototuneusa.com/break_in_secrets.htm

I think this is for motorcyles, but still.

This guy has some funky *** ideas, and im thinking hes full of it. He says toward the bottom of the page that port and polihing is detremental to engine performance, and that smaller intake ports are better? I could understand that MAYBE cause its speeds up air through a smaller opening...but still.....what you think?

the break in sounds a bit off too. I know its good to go to 50 or so, then break back to slow, then do it again for a bit.....at least thats what a few racecar builders I konw say.


anyeway, cheers!

 

It appears that the author is stuck in a two-stroke world. They'll all be illegal soon,
anyway.