Karting??..
Perhaps somewhat related, I've been writing installments for
Nuts and Volts Magazine on designing & building a small engine ignition timing controller. (So far they've published 5 out of 7 installments.) The objective is to use an automotive ignition coil that can vary ignition timing, and program the Table with a touch screen controller. It gets installed on my son's Manco 2-seater. Not sure if it'd even be legal in class racing.
For the gauges screen on the programmer, I Photoshopped the tach and vacuum gauge (Performance Gauge) from the center of the '67-'69 Barracuda cluster.