Throttle linkage kit Includes 2 all metal rod ends, aircraft aluminum tube, Holley carb bushing, 2 return springs, bolts and nuts. Just bend to clear air cleaner, cut to length, thread one end (requires 1/4"-28 tap) Easily forms to any car or use straight. 6061 T6 Heat treated aluminum alloy is tough to bend but stays to shape in use - Won't straighten out and cut throttle travel, costing you precious horsepower. Throttle rod length - 23-1/4" with 1/4"-28 RH. Note: Both ends not threaded so you can cut to fit. 1/4"-28 RH tap is required to complete the installation.