Consensus on EPA

i just got done running at a huge track today running 4-5s, 4s geared 13/46 on the tekin 2250 truggy motor is about 40 mph with the epa all the way up, speedo 140 motor 140 after 5 min quallifiers, put in a 5s and turned the epa down to 90 from 125 for 5s, after 15 mins, speedo 150, motor 150, i do not believe that turning the epa down affects the temp that much is this agreed by my temps?