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Message: <blockquote data-quote="Rednaxs60" data-source="post: 228969" data-attributes="member: 4617">Going to address your question.Had another trial this afternoon.  Freshened the tune I am using.  Checked the timing again, locked at "0" degrees.  Connected everything back up and started the engine for a trial.  No vacuum, engine just wasn't right.  realized I forgot to unlock timing, things progressed much better after I did this.Sticking with the VE table, adjusted some other parameters as I went along, but if no difference in the engine operating, reverted back to what I started with.  Trying not to stray too far.Had a "stumble" that started after the engine was operating for a bit.  Not when cold, or when WUE kicked off because the engine was at operating temp.  Gets worse and more often as time progressed.If this is the case, a misfire is ignition related.  Checked the temp of the coils with a finger check, seems fine.  Should check the coil driver as well.  Maybe the coil pack is not heating up enough to fail, but enough to not operate correctly, same with the coil driver.The only mods I have done to the CFI system, is fuel and it is working well, coil pack and coil driver.  Thinking to revert back to the original coils, worked well before.  Can do a temporary install to test theory.Have ferrites on the input signal wires:[ATTACH]49582[/ATTACH]More to follow.</blockquote>