Does anyone know if they make a guage that taps into the schrader valve on the fuel rail? I would prefer an electronic one that I can monitor when I am driving the car. I looked at a few aftermarket ones and am not sure how they inpliment the sending unit.

 

yes they do make a gauge that taps in schrader calce
autometer has an electric sending unit you just need an adapter for the schrader valve but i could be completely wrong about this part