Seller notes

1" birchwood square bore 4 barrel carburetor spacer open center with stud kitThese carburetor spacers offer many advantages:Increased plenum volume which can improve torque and power outputBirchwood is a great thermal barrier, the carburetor will become cold to the touch due to the cooling properties of vaporization!By keeping fuel bowls cool you get a noticeable increase in fuel density, resulting in a better charge available for combustionAED has seen results on the dyno of up to 20 horsepower...

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