clogged oil passages hi guys i am in the middle of a teardown on a 351 windsor that lost oil pressure to date while i am in there i have replaced the air , water ,oil pumps and have sent the heads out for a valve job and magnaflux. my concern now is with potentially clogged oil passages how do i determine and or unclog passage or bearing journals without removing crank is it possible or even sensible to try i am a fearless novice who tries to move forward at a glacial pace just looking for sucess at the end i certainly dont want to skip a step put everything back together and still have low/ no oil pressure can anyone explain procedure and what to look for to unclog passages thank you