The world famous Holley Tri-Power Carburetor system is legendary in Chevrolet circles! They were the ultimate power statement when they came factory on cars like the 1967 427 Corvette. And, NOW you can have the same look on your SB Chevy! Perfect for muscle cars, street rods, classic hot rods, rat rods, trucks and more! ECONOMY AND BIG HORSEPOWER! Cruise around economically on the 325 CFM center carb, and when you decide to step on it, the two 350 CFM outboard carbs kick in for head-snapping performance! Systems Include: • Weiand Dual plane medium rise 3x2 intake manifold • (3) Holley 2-bbl carbs (two 350 CFM outboard carbs, one 325 CFM center carb w/ electric choke) • High-quality steel fuel lines • Progressive throttle linkage • Reusable air filters with polished housings • Carburetors available in Dichromate or Shiny Finish