The Mechanical side! 

Smokey Yunick: Legendary Innovator: Smokey Yunick’s career with Hudson, Ford, and GM was defined by bold ideas and relentless pursuit of performance. 
Smokey was quick to recognize Oppenheim’s goal of making and engine’s piston dynamics be in harmony with combustions dynamic. His insight of using a constant acceleration cam profile matched both combustion dynamics and kept the inertial load on the engine to a minimum. This advice helped keep the Rad Cam design within those boundaries.