acerc

I just finished the last of my fifth gallon of gas thru this engine. Somewhere in the last two tank's the engine started to open up. I'm currently running an 18-8 @ 7000rpm with full synthetic @45-1. Thinking of going to an 18-10 prop just to maintain some load on the engine in the air. The plane weigh's 17lbs and will almost hover. And for a Waco that look's odd. Also I am getting about 40 min's flight time on a 16oz tank. And this is not running lean, Itach tomaxrpm and back down 2-300rpm's.
I don't know if that's good or bad but compared to nitro, well,there's no comparison. Any of you guru's see something in this I may need to take a better look at by all means let me know.
airtime82, my appoligies on the O M G. Just one of those days, and one of those questions thats been asked 300 times. But that is why we come here.