more information on the PR12
Included yesterday race, this is the 3rd time I run this engine.
One of the biggest different I found it takes time to really warm-up this engine, so don't use the temp reading from it during the first 2 mins. Tune it after you have a good hard drive at the track 2 mins plus. You should be doing this on any Nova based engine anyway but PR12 is specially important. The bad thing ( or the good thing) is that PR12 can operate at 130C plus, I tried that in 3 tanks in a roll without any idle nor overlean problem , but performace is not the best.
Yes, Odonnell plug did not blew once on me at that temp.. (touch wood)