Im curious what your uaing for your ip an how your getting so much fuel through it. Im wanting about 300hp worth of fuel for my project. I have a ip off a 4bd2tc, and it seems no one other than you, have pushed these pumps past their designed limits. Ive found a zexel ip off an isuzu 4he1, resembles a bosch p pump some, and is rated at 170hp, didnt know if these would be easier to get more fuel or not. Any thoughts?