ok so i have a question i plan on getting a cam, lifters, valve springs, and rockers. i was wondering if i need any other accesories to make all this fit properly. like do i need a guide plate kit? timing chain? valve stem seals? valve keepers? any help will be greatly appreaciated. and i basically just wana know if from what i plan on getting if i absolutely need anything else to make it work or is a straight bolt on process from what im getting? thanks