while looking into water injection i came across an ultra plenum with the setup for secondary injectors and fuel rail for a good price and picked it up. my motor is stock with spacer plate,head studs etc. i want to break the 300whp mark, are my stock injectors up to the task and if so what can i use another set, just to close off the injector ports in the plenum for the time being until i build the motor. the water side of the plenum seems pretty inexspensive (relative) to complete. im also hoping frank chimes in with some prices on heat exchangers and pump etc.