Have mine mildly bored up, good compression out of the box; should get better as I break it in. It was about 100psi, now it is 130psi.
Since the kit didn't come with a new wrist pin needle bearing, I had to stuck with the stock one. But I realise there's ton of side to side play between rod and the piston since the new piston is 43mm. Is it normal? I dont want the bearing to blow up again in my cylinder..