![]() ![]() Stan Antlocer called his racer "the world's fastest Tempest". Since the Powershift transaxle could use only a 3.90:1 gear, the Antlocers replaced it with a conventional 3-speed manual and narrowed Catalina rear axle, running a 2.28 first gear and 4.30:1 rear. Stan and his father ran a speed shop in the area, and campaigning throughout Michigan, Stan won often, with an amazing best time of 11.93 123.95 mph. Detroit-area racer Stan Antlocer also bought one of the Super Duty LeMans coupes, through Stan Long Pontiac. The dozen compact terrors went to the best Pontiac teams and drivers, including Arnie Beswick, Arlen Vanke, and the legendary Mickey Thompson. ![]() In January 1963, six more Tempest station wagons were given the same treatment, which resulted in bit more rear weight bias. With a trunk-mounted battery and a 12-gallon fuel tank, the Super Duty LeMans coupes weighed around 3,150 lbs and had nearly 50/50 weight distribution. Pontiac engineers created a heavy-duty "Powershift" 4-speed automatic transaxle that included a 10.6" clutch for launching off the line. Aluminum front clips were added, and 421 Super Duty engines installed. On December 12 and 13 six LeMans coupes were built minus radio, heater, and sound deadening. The results were beyond fast - Bill Shrewsberry dominated the Winternationals A/FX class with Mickey Thompson's Tempest, his 12.03 best time a good half-second faster than the competition. Super Duty engines in the compacts, and replaced the Tempest's unique "rope" driveshaft and rear Corvair-based transaxle with a conventional transmission and narrowed Catalina rear end. Two Pontiac Tempest coupes assembled in November 1962 were sent to the shops of Ray Nichols and Mickey Thompson. With the Winternationals approaching, Pontiac took drastic winner-take-all measures. But the new Catalina was still at least 200 lbs too heavy, especially when compared to the mid-size Dodge 330s and Plymouth Belvederes. Many aluminum sheetmetal components were created and the frames had so many weight-reducing holes punched in them they became known as the "Swiss Cheese" cars. For the 1963 model year, Pontiac created 14 special Super Duty Catalinas in the hope of gaining back their advantage. Engineers said 100 pounds equaled one-tenth of a second in elapsed time, and Chevrolet, Ford, and Chrysler were putting their Super Stock and Factory Experimental racers on serious diets while boosting horsepower. In a sport where a victory can be measured in the blink of an eye, weight was one major component to success. But by the summer of '62, Pontiac's competitive edge was beginning to wear off. Pontiac was the car to beat, both in NASCAR and USAC stock car racing, and in NHRA drags. By the late 1950s, the horsepower race was on, and stock-bodied racing was the perfect place for Detroit to display its latest engineering feats.
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