supercharged111

  1. BPR Speed

    L30 PCM on a L31 engine

    Hello Everyone, As I wrap up my engine build/swap a thought just occurred to me... I swapped my 305 engine for a 350 that I rebuilt for the truck but I just remembered I have a 305 black box PCM. Will the PCM have fuel and ignition maps that'll work for the 350? I do have modifications on...
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