gauge question

[cobraclone]

can i use an oil pressure mechanical gauge for fuel pressure reading?

 

[dwight97]

i thought about doing that but i just ordered one from summit for 15 i think it goes on the fuel rail;

 

[MustangChris]

i thought about doing that but i just ordered one from summit for 15 i think it goes on the fuel rail;

where does the gauge go? is it hard to install?