I think the Goulds V60 is a 20 gallon tank. Did the well man say the pump was a V60?
If you get your pump and wire replaced, tell him not to cut up the wire and to leave the old wire and motor with you. They are probably worth at least $100 as scrap.
If the pump is using 17 Amps when it should be using 6 Amps, then it shouldn't be running at all. He should tell you what the horsepower is.
The air pressure in the tank should be about 2 psi less than the starting pressure of the pressure switch.
You might be able to check the pump by connecting a hose to a spigot, open it all the way, watch the pressure when the pump is running, and measure the flow rate by measuring how many seconds it takes to fill a 5 gallon bucket. If they installed a 20 gallon tank, then the flow rate should probably be somewhere in the range of 6 to 10 gallons per minute.