Hey Miles, when I first got my Wild Hare 330, the BME 110 wasn't quite out yet, so I put in a BME 105, and used the KS 86 V4 cannisters, which is the same as MRT 1750 is going to use. I've included a pic of my install. I got the stainless steel header parts from Desert Aircraft and had them welded together. The header length should be 11" from the flange to the cannister inlet. My prop of choice was the Menz 27x10, but sorry, I don't remember what rpm I got.

Several months later,when the 110 came in, I needed a new header, so this time I got the parts from Desert Aircraft, and, using their brazing rod, I made up the headers myself rather than having them welded. It's very similar to sweat soldering copper pipe, and I have yet to have a joint fail. Ernie, just call Desert Aircraft, they have all the header parts you'll need.

Ernie and Mrt, what planes are you guys putting your 105s into?