5.4 3v misses from 3000 to 4000 rpm, sometimes when missing the engine light blinks

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This truck is a standard shift, 6 speed. It does'nt matter what gear its in but when the tack reaches 3000 rpm the engine misses when the accelerater is to the floor. Sometimes when its missing the engine light will blink or sometimes will stay on. Throws out different codes. P0171 Sys. Too Lean Bank 1, P0174 Sys. Too Lean Bank 2, P0300 Random/Multiple Cyl. Misfire Detected, P0304 Cyl. #4 Misfire Detected.