Just an update. The shop is closed this week because everyone went to SEMA. They should be back to work on Gretchen by 11/9 and think they will have it ready for the tuning session with Vince on 11/13. I found two possible intercooler solutions and passed the info on to them, but it was right before they left for SEMA so no word on the status of that.
If you want to see their web site (it hasn't been updated in a while) the link is below. The shop is Polk Performance in Alexander, Arkansas. Although the mostly do imports, the cars they race all have Chevy motors and they are doing an impressive rebuild on a LS1 right now.
http://polkperformance.com/
I'll post more pics sometime next week.