Proflow Aluminium 1 in. Open Holley 4150 Carburettor Spacer
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Proflow's aluminium carburetor spacers offer many advantages. They extend the length of the intake mixture column to improve air/fuel distribution and they improve engine appearance. They'll also help with linkage clearance when using custom throttle setups. They feature your choice of a either a 3/8", 1 or 2 in. thickness, and open or ported plenum designs. Gaskets and mounting hardware are included.