The carbureted Merlins could not fly inverted or at negative G’s because of float-type carburetors…A Grumman Aircraft engineer invented the diaphragm (chain-saw type) carburetor and solved that problem in later aircraft…
VERY few American-made cars had fuel injection in 1980…Nor did they have cam sensors or throttle position sensors. Cars built before 1975 had virtually NO electronics at all. The Bosch injection found on many European cars was 100% mechanical…
Beginning in 1981, the first electronic engine controls appeared, producing some of the worst cars ever made…The lost decade…Some manufacturers simply paid Bosch licensing fees to use their injection technology and moved ahead quickly into the age of electronically controlled fuel injection… Others tried to develop their own systems (Chryslers “lean-burn” and Honda’s CVCC" but in the end, they ALL finally went to multi-port electronic injection and retired their 1950’s engine designs.