There is lots of differing opinions and reasons for them. The initial timing is used only on the start and limp. The initial is added to the computer timing to get the final advance. If you just...

while we are passing info to get you going, here is a pigtail extension I made so I could mount the pcm under the front seat but leaving the truck wiring intact.

In ref to tuner pro and the process, it is a litte steep on the learning curve at first. Then it is kind of "bingo" and it all starts to fall in place. With the $, they are the mask which is...

The apu doesn't have to be used emulating. I just data log with mine, decide what I need to change and burn a chip with the apu.

The prongs on the chips are very thin and I tended to get one bent trying to put it in. The zif allowes you to just drop the chip in and flip the lever and you are done. If you want to get the tune...

The apu has always worked well for me. Moates has always been helpfull when needed. Might be an idea to have them ship a few extra chips. If you are going to seriously get into tuning it yourself a...