another first timer on E85

We try to stage @150-160,have no idea what egt were getting(tune by temp build, mph) As far as temperature vs. consistency during a race, its very similar to gas only tighter, they love cold dry air, one thing to mention, we notice more variance in e.t. in relation to how long were idle(waiting in the pits)than engine temp. My car will run same e.t. if I stage @150 or 180.