that kit is made for a built motor. if you push 200+ extra horsepower to your motor it will blow sky high. it will take about 20 lbs to make 200 extra hp. that kit doesnt make any sense to me because most people that have a built motor will have a custom kit made. if you wanna run boost youre better off getting an FMAX or DRAG kit and starting at 6 or 8 lbs. i ran mine at 6 lbs for about 5 months. then wanted more speed to i turned it up to 10 lbs AND WENT TO THE DYNO BEFORE TURNING IT UP. i wouldnt run any more than 10 lbs on a stock motor. and if you run 20 lbs youre going to need some sort of tranny work