I have been involved with engine building and development for all types of racing for almost 50 years. The latest challenge has been small 200 cc kart engines design. You want a tuning challenge try taking a engine that is designed to run at 3600 rpm turn it 8500 every lap and get the fuel curve right with a $15.00 dollar carburetor. The engine is data logged every lap as well as having installed an O2 sensor a few months ago. The #s don’t lie after hundreds of hours in changes and modifications I still cannot get the fuel curve correct at the top of the rpm range. A single cylinder engine does not allow for any imperfections in tuning at all. My point is that I am very interested in how development of this tech for small engine goes. Love to work with if possible.