1994 p30 Winnebago warrior fuel pressure issue

After further testing I'm 99% sure it's the regulator.

I moved the fuel pressure gauge just before the throttle body and didn't go through it and I have 50+ psi. I was testing with a adapter that I had mounted where the filter is on the frame rail before.

Not sure what it could be in the regulator as there are not that many parts in it and I just put the rebuild kit in it.

I'm going to get the regulator in the morning and see what happens.