So I recently did a motor swap on my truck from a 4.3 to another 4.3. I made sure I hooked up everything right and did everything I needed to do right. I was able to crank it a few time. But when I let it off the jack stands the ignition wiring on the Steering column it would start to smoke and melt. The prong is C2 which is a ground. I have a mechanic friend that looked it up on the app ALLDATA but he couldn’t find anything wrong. Last night he was over and was looking at it with me. We have no idea why it’s doing it. Can someone please help me about it.