This Edelbrock Pro Tuner Distributor delivers precise, reliable ignition control for Edelbrock Pro-Flo EFI and EZ Street EFI systems. The 3681 distributor is for Pontiac 326-455 engines. Built for durability and performance, it features a hardened steel shaft, sealed upper ball bearing, sintered steel bushing, and a Hall‑Effect short‑tooth trigger for accurate timing under extreme conditions. A melonized steel gear ensures long-term wear protection and compatibility, making this the trusted choice for high‑performance EFI ignition control.