Description

; Extends length of intake mixture column to improve air/fuel distribution; CNC machined from 6061-T6 billet aluminum to extremely accurate specifications; Billet aluminum eliminates porosity and improves engine appearance; 4150/4160 Series Holley bolt pattern to fit a variety of carburetors; 4150/4160 Series Spacers in 1 thicknesses with 4-hole design with 1.750 diameter bores; 4-hole design increases mixture velocity for improved low-speed and mid-range torque*Not legal for sale or use on pollution-controlled vehicles

• Extends length of intake mixture column
• Better air/fuel distribution
• Billet aluminum stops porosity
• 4-hole Plenum raises mixture velocity & improves low-speed/mid-range torque
• Gaskets excluded
• 4150/4160 Carb
• 1 thick
• 1.750dia. bores