I have a 08 GMC truck with a 427, and I need some help with the injectors. I purchased a set of 60lb injectors rated at 3 bar for this engine, and am having trouble geting the injectors right in the IFR table. I am now aware that this truck is equipped with a Fuel pressure control module, and have verified that my truck only runs at @ 43.5 psi. Further there is no method to putting a flow rate higher than 63.5 in the table.
My question is: do I need to modify the fuel pressure control module in some way to only allow it to reach 43.5 all the time, or would i need to tune for it in the IFR table. Any help with this issue would be great so thanks. I can provide the different methods I have tried but none have come to being the answer that I need to solve the issue.
Thanks in advance