Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededPROFORMPART NUMBER: 778-67231
Primary and Secondary Linkage Kit
$2199
Ships Tomorrow
Lowest Price GuaranteeLinkage Kit
Primary and Secondary Linkage KitAlters the Opening Rate of Carburetor Primaries and Secondaries Fits Proform Mechanical Secondary Throttle Base Plates Includes Three Ratios: Sold as a Kit
- Stock
- 1:1
- Super Progressive
Proform 67231 Primary and Secondary Linkage Kit
This linkage kit from Proform will allow you to change your carburetor secondaries from opening at the stock rate, a 1:1 ratio, or even super aggressive on any of their carburetors equipped with mechanical secondary throttle plates such as Proform Race Series Carburetors (sold separately) or equivalent.
Change Primary to Secondary Ratio Quick and Easy
Proforms linkage kits allow you to change the opening ratio for the primaries and secondaries on their mechanical secondary carburetors.
Part TypeCarburetor Secondary Linkage
Product LineProform Primary and Secondary Linkage Kits
BrandPROFORM
Package Height1.25
Package Width3.5
Package Length3.5
Weight0.08 PG
Part CategoryPerformance Parts
Carburetor Secondary Connecting Rod MaterialSteel
QuantitySold as a Kit
Part FitmentSemi Universal
Vendor Part Number67231
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
HOLLEY
34-25 Primary Quick Change Jet Kit For Model 4150 & 4160 Carburetors with Single Fuel Inlet & Center Hung Bowls
Part Number : 510-34-25
$10495
HOLLEY
34-26 Secondary Quick Change Jet Kit For Double Pumper Model 4150 Carburetors with Center Hung Bowls
Part Number : 510-34-26
$9375
![4-Barrel Carburetor Base Gasket [Square Flange]](https://www.jegs.com/images/mini_200/500/555/555-16100.jpg)
![Carburetor Stud Kit [1 1/2 in. Long]](https://www.jegs.com/images/mini_200/500/555/555-15840.jpg)
![Heavy-Duty Steel Workbench [59.5 in. x 27.5 in. Bench Top]](https://www.jegs.com/images/mini_200/500/555/555-81440.jpg)
![Workbench Utility Mat [24 in. x 16 in.]](https://www.jegs.com/images/mini_200/500/555/555-80170.jpg)
Some parts are not legal for use in California or other states with similar laws / regulations
