I have a dove standard bore block that I just picked up from my machinest. it was cleaned tumbles and magged and checked out ok. it is ruff around the distbritor hole. My machinest said it most likley had a dist gear chewed up in it at some time. It can be smoothed out or machined and bushed.not a huge issue but it is the only issue . thanks Justin 503 412 8141 $250 plus shipping.