KRC Carburetor Return Spring Kit - (Fits SB and 90 V6 Chevy, 2BBL or 4BBL) H Beam Rod They also accept the larger

They also accept the larger wire diameter of heavier rated racing springs

Fits both Small and Big Block Chevy

318 in Insert OD

providing a moderate to aggressive sound level

KRC Carburetor Return Spring Kit - (Fits SB and 90 V6 Chevy, 2BBL or 4BBL) H Beam Rod They also accept the largerThrottle Return Spring Kit fits Small Block or V6 Chevy 2 or 4 bbl. Kluhsman Racing Components we are constantly striving to drive forward and always go the extra mile. KRC Racing now proudly serves 60+ distributors across the United States and we are still growing everyday. Kluhsman Racing Components offers unique racing parts, accessories and specialty tools. Product Description: Throttle Return Spring Kit Manifold Mount Brackets Springs Hardware