Got ripped off. Looking for a new idea for the inside of the engine. Stroker maybe?

I have seen a clean turbo /6 Duster at the Mats in Vegas, but yours is sweet looking too. Did it make those 10 second passes on pump gas or do you have to run race gas to get the boost dialed up to that point? 500 hp out of a Slant sounds expensive and high strung. I think my convertible was well over the 2800lbs mark with the Slant as well, probably closer to 3350lbs.