AED 1/2" Birchwood Carburetor Spacer - Standard Holley MBASE Formula and Stock Cars

Formula and Stock Cars

1978-1984 Plymouth Horizon

2-1/2 lb Fire Extinguishers

Starburst Medallion used on the buckle is an exact copy of originals

AED 1/2" Birchwood Carburetor Spacer - Standard Holley MBASE Formula and Stock CarsAED Carburetor Spacers offer many distinct advantages that are worth mentioning. Besides traditional tuning changes in plenum volume which can improve torque and power output, Birchwood is a great thermal barrier. By keeping fuel bowls cool you get a noticeable increase in fuel density, resulting in a better charge available for combustion. Results on the dyno of up to 20 horsepower. AED originally designed these spacers for racing but soon found out