Features:

• Features a tumble polished finish (can also be hand polished)
• Optimized street calibration that works-out-of-the-box
• Factory preset electric choke for easy startups
• Glass fuel level sight windows for easy, safe float adjustments
• Vacuum secondaries allow use on a wide variety of vehicles. Quick Change vacuum housing cap allows you to tune for performance or fuel economy (springs included)
• 4-corner idle allows you to precisely control your idle system
• Aluminum construction for a 44% weight savings
• Ford A/T kickdown
• Fuel line kit included so there are no unnecessary trips back to the parts store
• Limited lifetime warranty - Guaranteed to be free from defects in material and workmanship for the life of the product!
• 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Specifications:

• Barrels: 4
• Booster: Straight
• CFM: 670
• Choke: Electric
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• Material: Aluminum
• Model: 4150
• Secondaries: Vacuum
• Throttle Bore: 1.688 inch
• Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port

510-0-80670 supersedes 510-0-83670

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.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART