Manufacturer: Moroso Performance Products. Holley Vacuum Secondary Spring Kit; Custom Tailor Secondary Opening/Closing Rate; Incl. Instructions/Seven Springs [Color Coded From Light to Heavy];. HOLLEY VAC SEC SPRING KIT.
Moroso for Vacuum Secondary Spring Kit - Holley - 7 Springs
Holley Electric Choke Conversion Kit For Vacuum Secondary.
Holley Manual Choke Cable Mounting Bracket For Vacuum Secondary Carbs.
Holley 4150 Premium HP Series Carb Kit For 950-1050 CFM For Vacuum Secondary.
Holley Model 4180 Blue Gasket Kit For Vacuum Secondary 600 CFM Carbs
Holley Manual Choke Conversion Kit For Vacuum Secondary.
