Re: its ugly but getting there... twin-charged SRT-6!!!
As someone who completely worked a 1986 Dodge omni GLH turbo with every mopar performance part available maybe I can offer some help. My car was running about 20 lbs of boost for the 1st 3 seconds then backed down to 15lbs.
I'd have to say make certain that the injectors are high flow & aren't leaned out at those high boosts. Also make sure the waste gate is operating properly.