im looking at putting a nx kit on my lt. it has 148000 miles and has no sign of blowing up. the kit is a 150whp wet shot and i am doing all the safety procautions as to my ignition system to make sure it doesnt cut out and that i can run the gas safely. will the motor still be reliable and most likely not blow up or show any problems with the gas on it??wat would you change first in the motor??