Originally posted by Herbie
It means your engine is prerun or run in. Don't know if the JP fx engine line does the same as Rody from RB does with his tuned Rody teamengines but it looks like it's run in. You allways can ask your lhs.
Yes this one is the FX12 3 port version. Oh ok, thank you because I've also been told that its already broken in from the factory. But I notice that the piston sleeve modification is a little different from my friend's other FX12 T-03...