In 1990 and 1991, The General supplied an incredibly divergent pair of speedy pickups. The first was Chevrolet’s 454SS, based upon the GMT400 C/K pickups. The 2nd was GMC’s Syclone, based upon the S-fifteen/Sonoma. Although the Cyclone made use of new pondering turbocharging to nip within the heels from the Ferrari 348, the 454SS hewed to The t