My first question is which spark plug are people running and what gap is good. I assume to go with oem plug wires.
Is there a "safely modding guide" for the LS4?
If I wanted to add some E85 to a tank, like a couple gallons occasionally, could I do that with just a maf adjustment or is there an easier way? or even just add it and not make any adjustments.
Another thing I noticed when looking at the high octane spark table is that wot timing is set to 7 degrees. that seems pretty low to me.