Of the intermediate station wagons available in 1971, just two had big-blocks that made more than 300hp: Oldsmobile, with the 320hp 455 in its Vista Cruiser, and Ford, with the 370hp Cobra Jet 429 in its Torino Squire. Bud chose the Ford. ''He liked to go fast,'' Lois said. ''He loved the power.''. How Bud knew he could get the 429 Cobra Jet in