oil COnsumption until 1 qt low

was a 300 hp magnum,used 0 oil.dipstick is the same.no windage tray,wouldnt fit.even made bigger baffles under valve covers.if its rings thats going to suck,pulled it after 400 miles and took it back to builder,couldnt find any major issues.if its intake issues wouldnt he have seen it with the scope?stock oil pan.