So me and my brothers checked the iginition timing on my '95 LS and my brothers '97 LS. My timing was retarded to around 14 degrees before TDC but still within the acceptable spec for the Teg. My brothers car was advanced to approximately 20-22 degrees before TDC. He had a mechanic buddy do his timing belt back in Jan 08 and he must have not set the timing right. We advanced mine to around 17 degrees and retarded his back to 17 degrees. Driving home on the highway, I noticed an increase in power in 5th gear from 60mph and above. The car used to struggle a bit, especially going up steep grades, unless I was going 75 mph or more. We'll see how the car does on gas mileage and see if it increases a bit. It's tough to tell the power difference without a dyno run before and after, but at part throttle in high gear, the car feels like its got a little more than before. There are good articles on the internet on how to adjust the timing and there's also good info in the Haynes repair manual that I frequently reference for info.