Adjustable Carburetor Vacuum Secondary Housing Assembly Fits 4160 Model Carbs Proform

Linkage Kit (QFX) 1:1 Super Progressive For Mechanical Secondary Quick Fuel

Quick Set Adj. Sec. Housing Screw Style Adjuster Quick Fuel

Vacuum Passage Gasket Seals Vacuum Passages To Vacuum Secondary Housing And Automatic Choke Housing Quick Fuel

Adjustable Vacuum Secondary Die Cast Polished Seal Included Quick Fuel