I have a 1987 S-10 with the small 2.8L V6. It's an automatic with 4 wheel drive. I was wondering if anyone knows what the stock timing should be set at. My truck is getting worse milage and lack of performance. I has variable miss here and there. It has fairly new plugs and wires in it. I just wonder if the timing has been messed with in the past, cause it should get better milage than what it does? Should have more power too? Thanks!