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hi, im new here. im looking for some help on learning about what supporting mods i need for my 2003 gt mustang for my zex wet kit. i havent installed the kit yet. so far i have a svt 255lpm fuel pump. i dont know if i need injectors or what??? it will be a 125 shot. i have a xcal tune, and i will dyno the car to make sure im getting proper fuel, but im just stumpped on any other mods i need. please help...