I recently acquire this engine pipe combo, I run it at home for the first time a few days ago, runs good, haven't touch the needles, it is turning an APC 11 /7 some where around 11, 700 rpms, I also have a 11/9 I want to try, using 15% Nitro with 19% oil, I run engines with pipes before but that was aloňong time ago.
Any suggestion that you may have will be very much appreciated.