Matt,

The reason I posted the 18X6 numbers is because that was the info I had for both engines. Putting the DLE on the same pipe with the same pattern props would be a fair test. A wrap around header will make for a shorter tunnel length and the side mounted carb might be ok on the wide body planes.

I had recommended and hoped Todd would have set up the timing on his engine closer to that of the OS160FX, which is very conservative. One reason it's so easy on fuel in relation to the power output.