Messed around with some FAI fuel today. On a Master Airscrew 10X6 an OS A3 plug and Sig FAI fuel it made a good 13,000. I will check some different prop sizes in the future and see if it makes much difference.
Man,,,,,, I picked up an Avistar .46 from SIG and it is making so much more power than my magnum .46 that I am thinking of selling it. I like the Magnum just fine and everything but it just doesn't compare.  I am torn.