looking for input on a ongoing problem of wallering out the wrist pin holes on the rods. BBC 524 CID, big chief ,14/71 std twist-retro-large exit hole. buzzard hat, 11.0-1 comp #1 & 2 cyls. 11.2-1 remaining cyls. Bill Miller rods, std. BBC pin sizes, J&E pistons 28/30 pounds boost @35%, 5 amp mallory @26 degrees. 990 enderle with loop, 37 lb poppet w/85 pill, max pressure 106-112 lbs, total area 36884, average main 120, high speed 72lbs-60 pill, ports open @ 16lbs, average AFR 4.550. 2150lb. car. auto trans/ rossler 210, 4.30 rear gear, leave rpm 4500,shift @6800, rod bearings show no signs of detonation, will damage rods in as little as 6 passes???? any ideas?