We have been running 10.5 blinky at the club I go to for a couple of months now, and what we find is that motors that can have the timing advanced run at around 58mmpr, whilst my original GM (with the fixed endbell) runs higher at around 62.5mmpr. There is next to no differance in the performance of the motors however the advanced timing guys motors are mega hot at the end whilst mine is not even slightly warm by the end of the run! So, it may be the case as the season progresses that people wind the timing back from the endbell and gear it up instead. Works for me at the club! Cheers.
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