A buddy of mine tried running that setup on a 408 stroker in his sandrail
Neither of us was impressed, especially at a base price of $2500
The car would lean out and not run correctly after numerous times out on shake down runs with it "self-tuning", it comes loaded with stock GM settings and from what I remember that you can only "adjust" settings so far (unlike HP Tuners, EFI Live, etc)
He finally got in contact with MSD and they stated that that system was designed for a "street rod" running a mild engine mods" , not for a stroker or "highly modified engine"
We pulled that system off, went back to a proven GM Gen III pcm and aftermarket harness (it was either a Speartech or Affordable EFI) loaded a base tune, then off to dyno, the sand rail preforms great now, no lean out conditions, etc
Hope this helps
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