What is the difference between a dual entry turbo and single entry turbo when it comes to big cam/small cam engines while installing an engine brake? That's what this video is all about. All material in this video was aquired by Jacobs Brake Inc. and by Cummins motors. This is not a how to video. It has part numbers, models, and adjustments information, but work should always be crossed referenced by O.E.M standards before any work is performed.