I'd love to try a bigger inlet cam but i'm pretty sure the pistons aren't pocketed althought they are low compression. Ye it just makes as much boost as it likes Martoon set it up and it is lazy as you can see from the graph but doesn't drive a bad as the graph looks. Martin reckons it just so big that there is just not enough air low down in the range to spin it up so it doesn't surge at all. (Big ports and massive cams would help) It made that power at 1.9 Bar on the dyno but makes 2.2 Bar when driving on the road!?!? So it might be more not sure if you get more load on the road?

Rich