I am a semi-retired mechanical design engineer with an extensive hobby machine shop. I started Black Hawk Engineering and manufacture metering rods and throttle shafts for Carter YH carburetors. I am developing a bolt-on electronic fuel injection system for Corvair turbocharged engines. I still have the Corvair powered Deserter GS that I raced successfully in autocrosses and hillclimbs from the 70s through the 90s.