Hey guys, just got my swap running... an 89 Dodge Dakota Shelby with an 03 Yukon 5.3, 4L60e, stock manifolds, true duals with no cats, and an eBay cold air intake. I've found a few 4L60 articles, but I was wondering if anyone had a 91 octane tune that I could try as a baseline? If anyone is interested, my stock tune file is attached. I wish the repository still existed, but alas it does not.
David Yukon.hpt