ADA Velocity Stack for HDA-77 carb on the Zenoah G620PU Engine (Works on HDA-223 GP460 Carburetor Also)

ADA Velocity stack for the larger HDA-77 carb on the Zenoah G620PU engine. 7/8" diameter thru-hole. Includes gasket.

Also works great as a replacement stack for the GP460 engine (HDA-223 carburetor)