Hi, I recently have been making some changes to the intake of a carbureted model and was wondering if anyone has tried this. I made 1" adapter plates that attach to the head and intake, as well as a thermostat housing so I can get the hot water away from the air chamber. What started this was changing out the Hitachi carburetor. I'm not trying to gain HP or torque, I'm just sure it will increase full economy. At least that is what I'm going for. I'm wondering if it has been done and had these results. Thank you.