Guys thank you for the advice. I found the problem...the oil pressure gauge is electrical and the wire from the sending unit fell off the sender stud because the nut was gone from the stud...I didn't notice it yesterday...dumb on my part.
I found it this morning I went to Checkers and rented a oil pressure tool and as I went to remove the sender I discovered the problem with the wire.
I did check the oil pressure with the tool, used a priming tool and got pressure, re-installed the dizzy , hooked everything up and the pressure held steady on the tool gauge. Reinstalled the sender, hooked up the wire fired it up again and the gauge showed pressure.

Thanks again for the advice