Restore proper function to your HEI distributor with this new vacuum advance canister from AIP Electronics. Designed specifically for the Dragon Fire series HEI distributor but will also fit any HEI style distributor. Made of steel and are fully adjustable using a allen key to adjust the timing to your exact specification. Each full turn counter-clockwise will Yield 2 degrees of timing advance.

** Factory Replacement Part that Meets or Exceeds Original Manufacturer Specifications for the Vehicles Listed.