1" BILLET ALUMINUM CAR SPACER
1" Billet aluminum carb spacer fits Holley 4150/4160 bolt pattern. Four hole plenum design with 1.750" diameter bores for ASALM Chevy. These spacers extend the 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. Four hole designs increase the mixture velocity for improved low speed and mid range torque.