Speedmaster 1-147-012 Features:

• Designed for the 1995 engine block utilizing 1996 and later GM Vortec (Gen 1+) cylinder heads or Edelbrock E-Tec cylinder heads
• Matching plenum and runner design to keep air and fuel distribution even
• An open area underneath the plenum chamber (Air Gap) delivers cooler charge air and less heat transfer
• High-grade aluminum casting
• Post-machined intake ports
• Square bore carburetor mounting flange

Speedmaster 1-147-012 Note:

• Can be used on 1996 and later Vortec engines with some minor modifications - Requires running a short section heater hose from the pipe tapped hole in the front of the manifold to the 5/8 in. hose nipple on right/passenger side of the water pump

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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