[rkreigh]

hi Paul,


Haltech, Motec, Holley and many others can control spark timing and fuel for each cyl



for my haltech I have EGT 8 channel so you can tune trying to get the egts relatively even regardless of AF which does ok.


more advanced systems now have a WB on each cyl to tune AF ratios to target for each


for the LS engines the #7 runs lean so we feed it more fuel