You can skip the test, you for sure are a candidate for cups. The cam does not need to be removed but the rocker shaft does. Also injectors can be reused if the sealing areas and non sealing areas on the tip of the injectors are ok. Most people just put new ones in anyway. They just get 6 cups and a 6 pack of injectors even if they only have a couple that are bad. Now if you’re putting in a new injector it needs to have a new sleeve/cup regardless.
