Episode 356 of Finnegan's Garage is all about making my 1955 Chevrolet Bel Air aka Blasphemi, a better driving street car. In particular, I wanted to find ways to better take advantage of the self-tuning "closed loop" feature of the Holley Dominator EFI. As unbelievable as it may sound, stuffing a rubber football into one of the ports of my Hilborn throttlebody was the key to getting the car to act right.