wen mac mkXII test run

I just got this engine from another member on Saturday. I got it freed up and mounted that night. I installed a pipe bomb glow head for a little more performance. The prop is a 6x3 thimble drome and the fuel is 10% nitro and 26% oil. It started easily and I let it run rich for one tank of a half oz. After cooling I restarted and began leaning it. She went to 15610 rpm and I enriched it back a little. It ran between 15480 to 15510 rpm for the rest of the run. Man this thing will go! Its the fastest wen mac I have so far. I have testor macs that fast but its the first wen mac. I am very happy with it!
Phil
p.s. I am still looking for a mk X and a mk XI even just a crankcase