500 miles on new Olds 455 engine!! Our beloved "Debbie" is a classic beauty! Cruises wonderfully at 70mph down the interstate. This is a quick list of recent work done: Replaced old 455 engine with newly rebuilt 455 with dyno testing, Holley Fuel Injection with Pressure Regulator, New Water pump, New Oil cooler Kit, New plugs, hoses, fittings, and parts associated with replacing new Engine, New torque converter with Allison bearing, Rebuilt Transmission with new parts, seals and gaskets, Purchased new final drive with limited slip and bigger output shaft (from Applied GMC), New Quad bag air ride system with new wireless air compressor (from Applied GMC), New Through the Bumper hitch (from Applied GMC) with trailer break connector, New Engine Battery, House batteries 3 years old.