The cam phasing is the most important operation in the assembly of your engine

This will control the rpm where the power of the motor is produced

This is not for the beginners but is for the person who wants the maximum out of there race car

9996/997 PINION RACE SPINNING IN CASE IS A COMMON REPAIR THE ORIGINAL CAST IN INSERT IS BORED OUT A CUSTOM SLEEVE IS GENERATED TO RESIZE THE BORE AND THE CORRECT INTERFERENCE IS RE ESTABLISHED FOR A LONG LASTING CYCLE TIME  TRANSMISSION PINION BEARING RACE REPAIR