Here's some more on his build. He usually deletes his posts on the forum. His website used to be 3000gt-sohc.com but now its gone.
How to get 200 crank HP out of a n/a 3.0? - Page 2 - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!
Here's a quote I found from sunmind
I respectfully suggest that my vehicle is producing at least the same or even more than Eric's DOHC. Mine dynoed at 220 immediately the engine was built, at 2,000 feet with air temperatures close to 90 degrees.
The engine pulls much more strongly now, after 4,000 miles. I use it once a week to run errands and keep it in good shape. My daily driver is a 300+ hp (3.5 liter) Infiniti and I do not feel as though the 3000GT is a slug by comparison.