This looks a little worrying:
Upon revving this engine in the garage no load tuning, it was making all six pipes glow red hot on a slightly lean run, and pipes 5 and 6 were alot hotter than the rest. Im a bit worried to give this engine full boost. If no one can give me the correct advice, I may try to cure this by slightly restricting the air flow to the back of the plenum.
The lower end torque is much higher.