I'm running the MP PCM on my 97 5.2 4x4 auto and I love it. I could def. tell
a big difference in performance, but most of that is probably due to the
increased timing. I really don't know how much of a change it would make for
you to move the timing back to stock and install the PCM. I did notice
firmer shifts with the PCM, especially the 1-2 shift. Sorry I couldn't be
more of a help.
Russ
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