If you want to check the fuel pressure of your car, you would need to get a fuel pressure guage and find the connection on the fuel rail. I don't know where it would be on the Tib if it has one at all. My Camero had one on the fuel rail and it looked something like a valve stem cap that you screw off with your hand and connect the gauge with.

 

Throttle position sensor. It's a little black thingy attached to the side of the throttle body, with wires coming out of it.

 

TPS = Throttle Position Sensor. It's the thing on the side of your TB