So I have a completely built M62TU motor , T-Trim Blower / 7" crank pulley-3.0" SC pulley about 11.5 pounds of boost, Walbro 255LPG fuel pump , Green giant 42 pound injectors, MAF tune at the moment maxed out the mass air sensor around 6000 RPM.... 500WHP or so... RUNNING fairly rich at the moment , ahhhh and it has at the moment a boost a pump installed set at 30%...... Next thing that is going to happen Alpha N tune , 7.75" crank pulley.... So do I need to go to 750CC injectors and add a Bosch 044 fuel pump inline along with the walbro to get enough fuel for the car to have about 580RWHP at around 14 pounds or so of boost at 6500RPM limit.Motor has been stroked as well , why I want the larger crank pulley to keep the RPMs down a bit and still getting power.This is being tuned at Speedwerkes in Thomasville N.C. as the tuner is flying in to do the tune and Andy is going to help me out.....