Today’s Corvettes perform to a level of reliability and performance that can only come through years of experience. The fact that they can satisfy our appetite for performance while also fulfilling the requirements for emissions and fuel economy proves the benefits of using fuel injection over the conventional carburetor.

Little did John Dolza, who is credited with developing GM fuel injection to a practical point, and Zora Duntov, who helped refine the system in preparation for the ´57 production year, know that fuel injection would be used exclusively in every car produced by GM 30 years later.

The first fuel-injection units were designed with only performance gains in mind. Overcoming the fuel starvation problems experienced with carburetors during hard cornering was the primary objective of designers, and history reveals that they did their job well. We asked fuel-injection specialist Jack Podell to show us what differences to look for when identifying the Rochester Mechanical Fuel Injection units.

This listing is by no means comprehensive of every change or model unit that GM had instituted over the course of production, but is intended to give the reader a good foundation of the Rochester Mechanical Fuel Injection units that started it all.

SOURCE
Jack Podell
South Bend
IN  46617