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Striving for more power and performance with a blower car usually leads to a pulley swap. Here Jesse Guajardo of Power by the Hour makes the move from the standard 4-inch pulley down to the 3.75-inch pulley. This change resulted in 12 to 13 pounds of boost and pushed the stock fuel system to the edge, so Lethal switched to C16 fuel and ran a 10.39 at 133.25. The next pulley change along with the other upgrades was a move down to the 3.5-incher for about 15 psi.