Pro-Series Adjustable Secondary Linkage Kit for all Holley Double Pumper, HP, and Ultra XP carburetors.
adjustment of secondary throttle blades for maximum horsepower output.
  • Includes all necessary hardware
  • Compact design won't interfere with throttle linkage
  • Perfect for circle track and drag racing
  • Detailed instructions included
  • Simple installation
  • Tough Stainless Steel construction for longevity, durability and control
  • Choose between a 1:1 and a progressive secondary ratio

Application Summary:

Year Make/Model
Featuring Stainless Steel construction and a lightweight yet rugged design
it provides a bulletproof method of adjusting secondaries on all Double Pumper
and Ultra HP carburetors. It allows user to pick between 1:1 or progressive secondary ratio. Kit provides infinite adjustment of secondary throttle blades for maximum horsepower output.
Attributes
ASIN B000M25ZS8
Adjustable Yes
Brand Holley, Holley
California Proposition 65 No
Carb Style Single Quad
Carburetor Style Single Quad
Carburetor Type 4150
Category Air and Fuel Delivery
Color Zinc, Zinc
Country of Origin (Primary) US
Emission Code 5, 5
GTIN 00090127605806
Grade Type Performance
Harmonized Tariff Code (Schedule B) 8409915085
Hazardous Material Code N
Life Cycle Status Code Available to Order
Material Steel, Steel
Model 4150, 4150
NAFTA Preference Criterion Code B
Product Type Secondary Linkage, Secondary Linkage
Return Springs Included No
SDR Required Flag N
Sale Category Carburetors and Components
Sub Category Carburetion
Usage Automotive
Warning California Proposition 65, California Proposition 65
Warranty Limited 90 Day, Manufacturer's Limited 90 Day Warranty
part type Carburetor Accelerator Linkage Kit

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Holley 20-122 Pro Series Secondary Linkage

Product Information

  • Brand: Holley
  • Product Number: 20-122

Vehicle Fitment