Complete kit will mount two TorqStorm® Superchargers to an Oldsmobile 350-455 engine. Includes superchargers, BOVs, crank pulley, crank drilling jig, air filters, carb hat, hoses, brackets, pulleys and hardware. Accessories include a Sandon A/C compressor, Power Master 165 amp one wire alternator, Turn One power steering pump and a lower oil fill tube. Kit is compatible with blow-thu carburetors and fuel injection systems (forced induction tune required). Limited Lifetime Warranty.