MSD 6462 6BTM Series Multiple Spark CD Ignition Controller Boost Timing Master universal hoses and lines 75 Substrate Material Ceramic Air J8132372 CRN 75 Substrate Material Ceramic Air Tube Adaptable No Converter Quantity 1 Finish Stainless Steel Series California Subtitle California CARB Compliant Title California Direct Fit Material Stainless Steel Type Direct Fit Inlet Attachment Bolt On Mounting Hardware Included Yes 7 V8 1982 1984 GMC K1500 Suburban 379 6 The result is a great increase in power but this can also lead to detonation that can result in severe engine damage It can be adjusted from 0 degrees per pound of boost to 3 degrees per pound (up to 15 degrees)