I'm seriously considering staying with the old style 555s for now since I have the J&S to give me a safety margin if they fail lean. 740's would be great but I may want to go e85 one day to really max these turbos out. Although Ventura is the closest station at this point. Then even with just race gas there are fuel pump costs, map switcher, multiple tunes etc. E85 is another costly set up should I decide to do that down the road. I only want to upgrade injectors once and the only thing that seems to flow enough for the foreseeable future are top feeds and I really want to stay away from them. I like the clean somewhat stock looking bay.