Can anyone tell me the proper technique for setting the ignition timing on a 2002 5.9 V8? I just swapped engines in my truck. I bought a slightly used rebuilt engine and I used my original distributor. I followed the Haynes repair manual for installing the distributor. It said once you install the distributor you can tighten the clamp and no adjustment will be necessary because the PCM will make whatever adjustment is needed. Well that was not the case. I couldn't keep it idling and when we tried to road test it it was pinging like crazy. I couldn't even see the timing mark with my timing light. I managed to get the clamp loose and turned the distributor until it would idle. It idles and runs much better but the timing mark is still about 3/4 of an inch above the timing scale on the timing chain cover. I estimate it to be about 15 degrees before TDC. When I drive it I have a slight backfire when I let off the gas. I only have an older basic timing light and the scale on the timing cover is small so I was wondering if there is something you have to do to properly set the timing. Like in the old days you would unplug the vacuum advance on the distributor to set the timing.