EXCELLENT BIG CARTER 0.120 (25-862) NEEDLE AND SEAT ASSEMBLIES!
These are the BIG needle and seat assemblies for the original Carter AFB carbs, 0.120 (part # 25-862). I run these on dual quad 750 CFM Carter carbs (4760, 4762) on my 455 Buick, and these are the only assemblies that keep the carbs full in the high RPM's. With these needle and seat assemblies, I am able to get 6,000 RPM's out of the engine, finally, without running out of gas. It has a Muncie 4-speed and I am also running a Joe Hunt Vertex Magneto with mechanical tach drive. Very happy! They were pricey, but there is no substitute for the real thing.