Well thats the problem, there isnt really anything that works. Sure, you would need to spend a few more $$ for a new turbo setup, but the nice power band is well worth it. Plus you can easily get $350-400 for a slightly used 42dd dp. A full t3t4 50trim kit is $3200 from pagparts and will easily make 320awhp on a stock block if not more. For $4k you can get a gt turbo setup.

The only other non elims i have seen are from mjmturbo.com. Just went there and the site has changed and the listing of turbos are gone. They use to have a ko4-20 housing with a t3s60 chra and compressor, but no one has tried it. But it would most likely turn out like the elims, slow spooling and lack of power.