Holley Secondary Metering Block - Chromate - Holley 4160 Carburetors 34-6 Exhaust System Deals Best for economy or towing

Best for economy or towing vehicles with automatic

Pull-Down adjustment

Available in link and latch aircraft style or cam lock quick release buckles

Champ Pans build many different combinations of steel oil pans and aluminum oil pans

Heavy Duty Construction

Holley Secondary Metering Block - Chromate - Holley 4160 Carburetors 34-6 Exhaust System Deals Best for economy or towingHolley Metering Block 34 6 Standard Finish (0 1850C S) Or Most Any Model 4160 w Side Hung Float Bowl Metering Block Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as