Ahh was it Matty ? Hes ment to be spot on, know a few lads that have taken their motors up there. As for the power, the figure looks restricted somewhat. A GT28 @ 1.6 bar should be over 300 easily. Whats the history of the engine ? Id do a leak down test on it to see if its loosing compression. Take it maintenance parts like fuel filter, plugs etc are all in good condition ?