Need advice 427 oil pump

[priobe]

Hello All,

I would like to find out if I have low oil pressure. I have read several posting on this site as well as others and everyone has a different answer.

From 10 psi at idle is ok to 60 psi should be the norm.

I would like to know a few things.

1. I connected a mechanical oil pressure gauge and used a oil pump primer with a drive and received 28 psi.

The oil pump is a Melling 57V High Volume pump.

Is this normal pressure.

Are you guys shimming the pumps. If so with what ?

2. I have also read that maybe the oil galley plug behind the timing chain cover might be missing. That this could be verified by removing the distributor and using a mirror or a wire to see if the plug is still there.

I dont see how to do this?

Here is a picture of my motor is this the hole that everyone is speaking of ?



I do not hear any noise from the lifter and everything seems to be fine.


What do you guys think? Should I replace the pump?