Planning a dyno session to make an EFI profile good for e85 and a separate profile for race gas. Initially I was going to try to dial it in with the engine out of the car (it's already out). Later, someone told me, don't bother, final dyno work has to be done with the engine in the car anyway. Does the drivetrain really influence optimal fuel/ignition? If so, then the only reason to do it outside the car is to have one session with higher hp numbers, but it's not a final tune.