[Craig K.]

As far as I know the SN-95 5.0 liter does not have a knock sensor.

I highly recommend Autometer, my brother use to work there many years ago and I visited their facility several times. Everything was top notch back then, plus it is American owned and operated.

The fuel gauge questions, some are safer than others, ones that directly read the fuel pressure off of a line into an isolator which connect to the gauge itself, those are porbably the more high doller ones you see, but they are safe to run inside the car. I am sure Autometer sells a kit for a 5.0 Mustang that you can get.

Air or vacuum (boost) should be as easy as connecting into a vacuum tie.

Oil would not be a bad idea, I would recommend an electric gauge with a sensor, you would probably be best off t-ing off of the stock sending unit outlet on the left front (lower) secion of the block. If you run mechanical, run braided steel line, as the plastic or copper line will eventually break causing a mess and maybe running the motor dry.