A fuel pressure gauge is certainly in order. I'll stop by napa but I doubt mine will have what I need. The engine hasn't spent much time near 4000 so I don't expect I've done any harm.

The pump was suspect to me, any way to check a mechanical fuel pump or is it all or nothing?

I'll look into adding an electric pump at the tank. I heard the Holly blue was really loud, not that my exhaust won't be louder, any other good pumps?