Run it up in 4th to check the boost levels.

Shorten the rod half a turn at a time, until you are holding a bar, if thats what it used to run.

There are better ways to set boost up, involving bleed valves etc, but this is best left to the pro's IMO.

Having said that, you would probably be safer to leave it and just run it at 0.8 until you get someone to look at it



Neil.