Save yourself the hastle and throw the gauges away or put them on E-bay. I understand there are those that like gauges, most new guy want them. I have seen cars pull off many time because a gauge said they were running hot or oil temp or pressure went up or down only later to figure out it was the gauge, the car was fine. By the time the gauge reads a problem the damage to these air cooled motors is done. Maybe more input from more racers will help you, this is just my opinion as a racer , builder and dealer.
Dennis Knox
Buckeye legends
330-310-9212