Hey! I am getting about 13 average now. And I misspoke - I have the 4l60e. I don't mind it - I didn't do this swap to burn 1/4 miles. I do think I need to dial up the line pressure on the trans.
Thanks to everyone that talked me off the ledge about 3 weeks ago, and kept me from selling my 80. If you remember, I got screwed by a local shop and the project was waaay over due and I was running out of options. I had offers from y'all from Florida, to Texas to send my rig down and get it...