OK MY SHO IS SLOW OFF THE LINE LIKE IT IS NOT TIMED RIGHT. WHEN YOU START IT IT TAKES A WHILE TO FIRE LIKE THE CAM SENSOR IS BAD. THE TEST SAID CODE 172. I AM RUNNING TWO TERMINATOR RACE MUFFLERS AND EVERY THING ELSE IS STOCK. MOTOR HAS 132K ON IT AND OIL IN THE PLUG WELLS WHAT DO YOU THINK IT...