KEN KAYSER may know. JIM LOCKWOOD is chasing the experts. We all got mail yesterday. I feel it is definitely a GM Experimental unit that ZAD (Zora Arkus Duntov and JOHN DOLSA tested many the 50's. Ken's book
“The “History of General Motors Ramjet Fuel Injection on the Chevrolet V-8 and its Corvette Racing Pedigree”
was published in 2007 and was named the 2007 Corvette Book of the Year by the National Corvette Owners Association.
The General Motors Fuel Injection history can not be told just by itself because the GM Fuel Injection timeline parallels that of the Chevrolet Corvette and the Chevrolet V-8. Ken was a engineer with GM Powertrain from 1968 thru 2008, but has also owned and restored many ROCHESTER FUEL INJECTION SYSTEMS and has access to many files that helped him write his book. His website is here for more info.
http://www.kayserspecialty.com/About-Us/