True that
It's not that hard to change to higher octane, timing, domes, a/f ratio etc. Again not saying they did this at all, and if the gain is that big thats awesome. I was just saying that I was surprised.
I totally agree but I would trust riders results then someone who would like to increase sales. And yes I have seen the other dyno results, my whole point was 8 hp switching from 3's to 4's is alot.