Right now most of the records are 'open'.. not a lot of NA, non-pushrod, single 2000-3000cc engines in the field that can run on the salt, at least not outside of the special construction classes. And I'm pretty certain all the forced induction records are up for grabs too. I'm going to spend the next couple years fixing that, with any luck.
She will eventually go faster than 240, but that's at least a year or two away at this pace. This winter the engine will be out and gone through, so I can update the trans parts then. Honestly, we don't stress the driveline as much as asphalt guys do, so I'm not super concerned for now (after upgrading the clutch springs, that is).
265 NA sounds fun, but I'm a boost kind of person, so that's what I do. The fact that I can make well over 300 HP easily with just a good top end foundation, and dial more power in as needed (up to 500ish with this turbo) really just makes me happy. That, and Bonneville is pretty rough for altitude density... that 265 would take a 15% hit on a day with good conditions, and I hate being at the mercy of the weather if I can avoid it.
If the NA records stay open though, and I have the extra money to spare, I may make a dual tune set-up up off the turbo header just to fill in those blanks in the record book.