Yes Lee, I had bdp Stg I 160cc singles in my 95, of course the DIY intake and open exhaust. I was running wildmans tunes to make the injectors earn their keep. The tranny had a transgo tugger II w/pump mod and I had a converter from Richter69. I dont know what the old girl dyno'd as I never had put her on the rollers, my WAG is about 350 RWHP. I miss my 95 sometimes, but I also know had I kept it I was looking straight on at about 2K in maint and repairs that needed to be done (little stuff.... shocks, front end work, fuel tank replacement, windshield and interior upgrades etc etc) so it was time to go.
So far I love the 06 but with fuel prices what they are it is no longer my DD.
4K sounds like a fair deal to me on what you are working with there.