It isn't a check valve. When T was mentioning that..the pressure had merely started to head downward. As I lightly touched the throttle, pressure would come up, therefore the pump was working well.
As for the oil pressure kit. It is designed to increase pressure and it was working quite well. At idle pressure was 60psi and at highway speeds 70-80 was noted.
Had pressure dropped and not tried to come back, a check valve would have been likely. Pressure was there...merely running out the bearing that was falling apart. There were enough signs on the motor that point to why it went bad.
I'm starting to think we didn't swap the motor and I dreamed it....yeah yeah..that'* about right.
Now I've got this other idea... velcro motor mounts
It'll revolutionize the automobile industry. Since I keep swapping them ... it would be faster if I just used velcro.
Going to call this morning and find out how the "return" policy works at the junkyard.