He could have bushed it down to 2.8 and put the stack in the back. I am guessing most people set their truck up for one charger and run that. Now they may pull in other classes they are legal in. If your new to sledpulling, set your truck up for the 2.5 class that ITPA is offering. Get to know the regulars, there are some great guys in that group. There will be several roller cam engines in the 2.8 class this year. It just isn't the class to start out in. You can have a 500HP truck in the 2.5 class and learn about setup etc. Basically in the 2.8 class your gonna need put in a minimum of $10k(probably $15k in additional funds to your truck) in that class to be consistently in the top 3 or 4