my boss has a 224hp 3126 CAT in our hauler and its sloooowwwww , we may be haevy but it has a hard time getting out of its own way , down hill with a tail wind even. so far ive got the MP8 Power Play on it and it did help it out but it still needs more , im open to ideas on pump work , injectors , turbo higher factory CAT tunes i really have no clue. any ideas?