OK, so the Me-109 had fuel injection, but the Spitfire and Hurricanes had superchargers and ran on 99 octane fuel with lots of tetra-ethyl lead in it. All the German planes used 88 octane fuel, and this was crucial.

HB - son of Capt. James M. Kirk, USAAF. 83 missions in B-17s, mostly over Africa and Sicily.