Fuel pressure gauge question

[chucknorris]

Can anyone advise: are you meant to leave the fuel pressure gauge on the regulator as I have heard from another builder that he has known them to leak in some instances (probably not on an Ultima and probably not the same make)

[chucknorris]

Thanks guys, consider it removed, now where the heck did I put that grub screw that went in its place...😖