To achieve his goal of excessive-yet-streetable power, Erion turned to Richard Sims of Sims Engineering. Sims, a veteran horsepower junkie and supercharger guru, took two Magnacharger 60-cubic-inch roots-type superchargers and began to work his magic. The Magnachargers receive their drive power from the crankshaft via a snazzy belt system. Sims designed and STX Welding fabricated the manifolds that connect each supercharger to its very own billet-air-cleaner-topped Weber 40mm DCOE dual-throat, downdraft carburetor on one side, and the intake ports on the other. Regulating the boost pressure and, in this case, keeping the boost down to a reasonable 4 psi, Sims Engineering's pop off valves allow excess boost pressure to be bled off back into the atmosphere. Sims says he kept the boost low to maintain optimum reliabiltiy from the engine. Once the boost crossed the threshold of five or six pounds of boost, he'd be concerned about the possibility of detonation with pump gasoline. A slippery slope of lower compression pistons, black box alterations, and other engine modifications would soon follow any increased boost. The four pounds of boost still allows over 25 percent more fuel/air mixture to enter the cylinders--more than enough for street use.