Something else to possibly consider is, Chris Johnson (jmschips.com) offers 77.7lb injectors which are modified 36lb FMS injectors. They're about the biggest you can get. I haven't seen 42 lb injectors modified yet. With a 77.7 lb injector and a FMU(only way to get the fuel without a stand alone, or injector driver) you should be able to run well over 1000HP