Injector opening is 12.375" x 4.625" on the blower surface and the workmanship inside the injector is aero flow designed and smoothed out for better air flow into the supercharger.
Injector has a provision for a throttle cable bracket and a barrel valve using industry standard 1/4" mounting hardware. RBS can supply all the parts to make the injector complete at an additional cost if the racer chooses.
Injector includes everything seen in the pictures which include injector housing, butterfly shaft and butterflies.