Thats a heap of timing. Would love to see the longevity at that timing as long as temps were kept under control
Playing with timing on my 21.5 trackstar motor. Seems to work best at 50 degrees. Tried 55 and it was no faster and made more heat. Running at 50 degrees allowed me to go 2 teeth smaller on the pinion. The car is MUCH faster now than at the stock max of 37 degrees. Picked up a couple of tenths on our little 6 second track.