I've only tubed 2 blocks.. using the MP peening
tool I didnt have any issues.. then I used a brake
cyl hone to get a better fit(the peening tool doent
leave the lifter free, it drags on the peened tube)
I hit it with the hone.. it works pretty good.. been
turning 8000+ rpm with those blocks.... my last 2 blocks
I just had them bushed