Obviously the engine was making more power, but how much more had yet to be determined. With our new 2.57-inch pulley, the WPI-massaged Eaton M90 pumped out 11.5-12.0 psi of boost through the ZZP ...
Ever since Chevrolet's vaunted Impala SS died in 1996, there has been much gnashing of teeth over the lack of "traditional" performance cars at GM. A big, comfortable sedan with some rocks that fits ...
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