Ford wanted to dominate racing, and designed the 429-ci engine specifically for that purpose. To qualify in 1969, any engine used in racing had to be used in street cars, so Ford turned to the Kar Kraft facility in Brighton, Michigan to squeeze their massive powerplant into an existing chassis. Remarkably, the Kar Kraft team was able to fit the new engine under the hood of the '69 fastback by moving the shock towers and suspension outward, lowering the suspension, and relocating the battery to the trunk.