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Message: <blockquote data-quote="shrades79" data-source="post: 403264" data-attributes="member: 8127">Heres my situation; I have a 94 GT AODE that I just installed a Standard Kenne Bell 2.1l Kit on. This kit comes with a Fuel management Unit (FMU) to help make more fuel pressure under boost. So I am currently running stock injectors and pump. I went to the dyno and its running lean after 4000 rpm. Fuel pressure is only 60 psi at WOT. I only put down 220hp 260tq with my mods and 7psi. I have been told to ditch the FMU and upgrade the fuels system. I bought a Walbro 255lb High Flow pump. What is the best size of injectors? ive been told to get 42lbers, is 42 to much for my HP? My next question is Will I need A different MAF? I will be getting a tune when i get the parts I need. What does the stock MAF peg at?My current Performance Mods:Standard Kenne Bell 7psiGT40 Lower Intake70MM Throttle BodyBBK Cold Air IntakeBBK Equal Length Shortie HeadersO/R H-PipeFlowmaster 40's4:10 GearsShift Kit</blockquote>