That looks like it was made in house by on of the teams. Those cams are track specific and most likely fitted to a particular driver and his style of driving. My guess is the cams are for short track, intermediate track and super speedway. We built something similar when we ran IMSA and it worked great in sprint races with one driver, but on the endurance races with multiple drivers it was a pain and we eventually went back to the old setup. Nice piece and a fraction of what it would cost to make. Tony