Description
PAC Racing 1200 Series Triple Valve Spring 687 lb in Spring Rate 1.130 in Coil Bind 1.645 in OD Drag Race RG40003XL NOTE: MSD 7 and 8 WEI7155 NOTE: MSD 7 and 8 Series Ignitions cannot be used with the Automatic Coil Selector Carb Flange Std 4150 For Up To 1 3 4 in various bench type equipment Xray Diffraction