Troy,

Thanks for the advice. I've set up the high speed and low speed just as you suggest, so we are on the same page there. I also filter at the fuel can and filter before the regulator. I'll get a 20 oz tank and try keeping my thumb a little lighter on the throttle. I'll also try the 15-10 prop. All good tips, and I'll start a new thread next time. First time user, and all that.

Also, thanks for the tip on the tappets. Having run about a dozen tanks of fuel through it, breaking it in and flying, I'm very very happy with the performance of this engine.

Thanks again!