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Holley is the only modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60's
This allows you to custom tailor a timing curve to match your application
SBB-13608M75
Multiple spark
Even the included locking nuts (not used in LS applications) have been revised to increase surface area to better maintain lash and eliminate wear
Polished Valve Cover Spacers RPCR7664 Product:Suit SB Chev 1" Tall Holley is the only modularPolished Valve Cover SpacersSuit SB Chev 1" Tall RPCR7664 CR7664 Adds clearance to your valve covers when using aftermarket rocker arms and stud girdles. Available in polished, black and orange finishes. Requires 2 gaskets per valve cover for use (gaskets sold separately).
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