I would like to add that if there is already oil in the cylinders from oil consumption that the compression test will have little validity! It WILL be abnormally high possibley covering up a problem gone unnoticed.....

As to the ring being installed upside down...easiest way to tell is pull the breathers from the engine and let it run....rings installed upside down will have excessive blowby and therefore will be pouring out the covers ( like an indian sending a smoke signal)

Also as for the Pcv issue... lets not forget the other had of the ventalation....so it's not a plugged pcv and it's new but.... if the engine is shut and no return air the pcv will have a "negative" effect and suck oil thru the pcv valve.....

This is why I suggested the Q-tip trick on the pcv hose at the carb base as well as the line from the modulator valve ( for an auto tranny).....

From my personal experience some problems are hard to diagnose and it takes a compitant person to do such...And any of you that have ever taken your vehical to the "dealership" for service know that there aren't that many around.....

I agree alot of people have given some very good/great advice....

I personally am not conserned with the bore/hone job as far as the oil situation.....I once had a 265 come in from RHS that was bored .060 and had standard pistons in it....how it lived I don't know but it did....it used no oil but had shavings in the pan you wouldn't believe..... I have seen a thousand times engines come for a freshening that are .040 with .030 rings and they live....course I send them back in the "right" condidtion....