AED 1" Birchwood Carburetor Spacer - Standard Holley 3552024-17-XXL Z-20 Shield

Z-20 Shield

V-type or Individual shoulder harnesses

Provides exceptional clarity and no distortion

Note that sometimes these suits are referred to as "fireproof" racecar driver's suits

AED 1" Birchwood Carburetor Spacer - Standard Holley 3552024-17-XXL Z-20 ShieldAED 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