Finally got around to putting a good 5-6 tank on my Clocked B5 Pro at the local park with a dirt field.

I almost had the same problem as Dreaux at first, so I called neal up and he walked me through tuning it. My topend was too lean, and the low end was a bit fat. After he helped me get it close, i was able to get it to run really nice at about 230, crisp clean power with plenty of smoke. I have dropped to .4mm of shims on the head due to our high altitude here in colorado, and as the engine gets more fuel through it it is getting better and better. It has about 3/4 gallon on it now, and I think it's getting close to dropping its nuts.

Overall I am very pleased with the engine, seems smooth and is making good power. Pretty easy to tune once you get the hang of it.