Hello, My first venture in working with factory pcm calibrations. My winter project is converting a 77 Jeep cj7 from an AMC 360 and torqueflight with Holley projection to a 2000 5.3 4L60E. I'm looking forward to a modern driveline swap! The AMC does ok, but the simple projection programming is 1 dimensional and its driveability isn't good enough for what I use the Jeep for now. I've been watching and trying to learn on this forum and a couple others. .I've gotta say I'm very impressed with the members here. Working with computer code, creating Apps and XDF files. Thanks ( huge thanks) for all their work making using stock pcm's tuneable for the common guy with out a commercial tuner. I've started using LS Droid and TunerPro Rt to read cals. Hope to be loading a simple changed cal here soon. Hope when I have questions you will have patience with a newbie.