Is there a wrong way to install the large round plate that goes between the oil filter face and the block ? Specifically regarding the oval hole that is in the plate. I installed mine with the oval hole clocked to 6:00 ( facing the oil pan ) but saw a picture in one of the Y block books with it at 12:00 ( facing up )

It primed right up to 75psi with the drill ( new motor ) but I want to be sure before I put the motor back in.

Pete