Features:

• 105mm diameter throttle body opening accepts factory style 4-bolt LS/LT DBW or Holley LS/LT throttle bodies
• Engineered for forced induction (supercharged or turbocharged) engine applications with peak power at 7,000-8,000 rpm depending on the application
• Low-height top-feed plenum profile to fit under a stock or mildly modified hood
• Modular design & top entry plenum flange allows the use of popular Holley Hi-Ram plenum tops as well as facilitating custom fabricated plenum tops. Base manifold, plenum tops, and fabrication flanges available as separate kits
• Designed for the accommodation of plenum mounted air-to-water intercoolers for boosted applications
• Kits with port injection provide high volume fuel rails with 3/4-16 O-ring ports (8 AN). Mounting hardware is included
• 3.18-inches taller than a factory LT1 manifold
• As-cast aluminum (Satin) and black powder coat finishes available

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

• 1965 and older U.S. manufactured California Certified vehicles
• 1967 and older U.S. manufactured Federally Certified vehicles
• 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

• Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

• 1966 and newer U.S. manufactured California Certified vehicles
• 1968 and newer U.S. manufactured Federally Certified vehicles
• 1968 and newer Foreign manufactured vehicle