Put me down for a 66mm (346cc) kit. With powervalves.
LOL going back to the 350cc grand prix class days eh?
Powervalves are another kettle of fish altogether. Every manufacturer has a slightly different way of doing it, so which way is best?
Developing and tuning the beast is also much harder, and I don't have any friends with engine dynos
![Sad :(](./images/smilies/icon_sad.gif)
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Maybe an exact copy of KIPS would be appropriate, being a Kawasaki but I don't have a KR1-s barrel here to copy.
Piston choice should be governed by future availability to some extent. But I guess whether to plate the bore or not is just as significant.
I can see it now "GIMME Gimme Gimme thats MY piston!!"
True, we still need to explore plating. I think I read somewhere once that some early Yamaha TZ's had hard chromed bores? (corrrect me here if I'm barking up the wrong tree) Before nicasil was invented that is.
If regular hard chroming works, then it will work out pretty cheep and easy.