I use Auto Gauge by Auto meter, But most any brand gauge set works good, I use the 3 gauge set, water temp, oil pressure, and volt meter. Volt meter is better and easier to hook up than an amp guage. I prefer the mechanical type of gauge, but it is a little harder to install, as you have to run flex lines for them, electrical guages are a little easier to install, as you only have to run wires to the gauges from the sending units. I mounted my guages below the ash tray.