Hopefully. The Black Salt Racing team managed 380mph in 2012, and they expect to better that time significantly this year at Bonneville Speed Week, which runs from August 9th through 15th.
Here's the article where I read about it: <a href="http://bangshift.com/general-news/event-coverage/land-speed-races/bonneville-speed-week-2014-impressive-runs-week-may-come-streamliner-potentially-400mph-triumph-gt-6/">
Bonneville Speed Week 2014: 400mph Triumph GT-6</a>
(Thanks to Scott McRoberts for the heads-up!)
<a href="http://www.blacksaltracing.com/Home.html">
Black Salt Racing's own website</a>.
BlackSandRacingTriumphGT6.jpg
QuoteThe car is a 1971 Triumph GT-6. Mark Hanson, the owner of StrangeFab Motorsports, produced the car. The top has been chopped 5 inches. It has been modified per the rules from the cowl forward and stretched to a 130 inch wheel base. The chassis and suspension are all custom fabricated. It is a Brodix (Chevy) block and heads, V-8, 360 cu/in. twin turbo charged with ice water intercooling. Boost is variable up to 30 psi. HP is about 2000. The engine is from Moran Motorsports.
Sadly, neither of the websites (above) provide decent close-up photos. You're left on your own to imagine technical, construction, and preparation details.