Okay. Did a quick research and it was Murray Jensen. Since Pop was building 357 ci NASCAR engines out of California it was probably the same Murray Jensen at Fuel Curve Engineering.
Some place we have a picture of him leaning over a carburetor at full throttle with his hair streaming down the side of his face toward the carburetor.
There is a small article in memory of him at the very beginning of the 2004 Edelbrock Catalog.