At most of the big $$$ bracket races there's enought cars at the start you have time to cool your engine,but toward the end(which is late at night)you do good to get some fuel & most of the time have to gauge your tires in the stageing lanes. With the alcohol starting before 12:00 AM & finshing after 12:00 PM the car seems to repeat the numbers better.

The only thing I see anyone needing to do when switching over to alcohol is buy your FI or Carb. from someone who knows what they are doing. They can get you close enought at the start that you can fine tune it yourself,alone with the GREAT HELP from the fellow Racers here on Moparts.