pistons .065 over 340

You can bore some 340s .100 over, I don't give a **** what anybody says. You just need to sonic test to be sure.

Back to the op's problem, you really don't have one. Like I said in the PM, just get a good quality forged .060" over piston and it'll run fine. Since forged pistons need a little more clearance because of their increased expansion rate, you'll be good. Just get a .065 over ring set and file to fit.