RE: MT-62
The MT62 is my favorite engine, replacing the Brillelli 366GT. The two engines are so close in performance I was getting the exact same rpms using the same props, and the MT62 is about 1/2 the price, I still love my Brillelli though. I got a lifetime supply of MT62, six to be exact, so I'm going to be stuffing them in everything.
In the picture the MT62 has a Ralph Cunningham carb rotator block on it. The black plastic one that comes with the engine is too soft and splits so this cured that problem. Ralph's rotator block uses a external pressure pulse tube that you have to put on the engine, so if you don't want to do that use TBM's, it's the black block that's pictured. The brown sheet the engine is sitting on is 3/8" phenolic board that I'll use for carb rotator blocks.
My first MT62 went into a SD 260 Extra, just bolting the engine directly to the firewall. The firewall flexed so much it broke the aluminum angle braces they use to hold the firewall in, so now I'm going to be using 1/4" aluminum plate behind the engine to spread the load out over a larger area on the firewall.
Just about any header will fit the MT62 because of the way the header bolts up to the engine, that's a big plus to me.
I picked up some 1/4x32 plugs and adapters, I'm going to be making a speed plane and don't want a spark plug sticking way out into the breeze. I may also try running it on glow with nitro and alcohol.
Get a velocity stack for your carb, it needs one. I think all piston ported engines need a velocity stack to catch the air/fuel mix that comes out of the carb, reed valve engines don't need one though.