Weiand is proud to announce the availability of their 142 roots-style superchargers and intake manifolds for small block Chevy Engines with the Vortec (L31) cylinder heads. These street performance blowers use a new CNC machined 2-lobe rotor design that no centrifugal blower can compete with. The 142 roots blower provides a flat torque curve resulting in more average power under the curve. The cost is less than a centrifugal systems and tuning is much easier. Out of the box the Weiand 142 produces 3 to 5 lbs. of boost, but can be adjusted up to 12 lbs. of boost with a simple pulley change. The 142 Supercharger kit is available in a satin finish P/N 6112 or a polished finish P/N 6112P. The intake manifold is available by itself for enthusiast wishing to use vortec heads with their existing 142 Weiand supercharger, P/N’s 6542-1 satin and 6543-1polished. All hardware and detailed instructions are included to make installation a breeze and is designed to work with a one or two V-belt accessory pulley system For more information contact Holley Tech Service, P.O. Box 10360, Bowling Green, KY., 42101-7360, Telephone 270-781-9741. For nearest dealer: 1-800-HOLLEY-1. Or visit us on the web: www.weiand.com.