So after about 6 months of ownership and steady reading I think I have a pretty good basic understanding on my 6.1L Kenne Bell. I have read that the hyper whatever pistons are sissys and weak lol which at this point is my only concern. At 7-8 lb of boost I don't need to run 100 octane but the 91 available in CA can be questioned so I bought a case of 8 oz bottles and decided to at least get another point or two for each tank. This isn't a race car or daily but I do want to see 100k from it. LOL Im not looking to visit Arrington any time soon LOL. Just a little something I am doing for piece of mind. even if such a small amount doesn't make a difference in performance I don't car my intention is to provide the car adequate octane without heavy carbon deposits.