i also have one with x on it which is a 2.5. it seems like that might be one of the older markings on the neotat 2.5-which means extra from the 1.8 which was the first and only one out for awhile-we should get ray on here to give the full low down on the different markings over the years and on the overall changes such as if a 4.2 cam would fit any of the neotats.
Bookmarks