the engine was run in with stock carby and extractors for over 400 k's only then did i put the turbine on, anyways it was only 7psi i think this time around it was the tune that was to blame. i comp tested it this arvo and one cyl is down at about 80-90psi the restare hovering around 130 maybe have a set of cracked ring or a broken piston.... hmm wateva it is looks like im going to have to have a look inside. more updates next week maybe.