Brian the tuner is running a power stroke turbo . u might want to look at one big turbo off a power stroke or a cummings .
That may be a good direction for me to source out a semi decent 'affordable' turbo. I will try to find out some more info and find who and where they are selling. I've read that those guys were pushing upwards of 90 PSI into 7.3's with the stock turbo.
Thanks Brian,
Hurst