Vacuum Secondary Spring Kit, Assorted tensions to change secondary's operating range, 7/pkg|Holley 20-13 Vacuum Secondary Spring Kit Assorted tensions to change secondary"s operating range.
Holley Carburetor vacuum secondary rebuild kit 390-780
HOLLEY CARBURETOR VACUUM SECONDARY DIAPHRAGM LEVER ASSY.
CFM Rebuild Kit 3-200 1850 3310 390 600 for Holley Careburetor Vacuum Secondary
Rebuild Renew Kit Vacuum Secondary Fits: Holley Carburetor 600 670 750 1850 3310
Vacuum Secondary Spring Adjustment Kit Assortment Fits: Holley Carburetor 4160
