I fired my motor up this weekend for the first time this spring. Its a 5.0 gxi-b. After running for about 10 minutes on the muffs, making sure the water pump was working after being replaced, I decided to take some temp readings at various locations on the engine with a laser temp gauge. I noticed quite a temperature difference between the port and starboard exaust manifolds, about 50 degrees worth. The starboard side was running around 160 while the port side was only reading around 105-110. Do I have a problem that needs to be addressed or is this normal for these type of engines?
