Vee_Que;30807 wroteId be checking hoses myself first. You don't have a separate boost gauge either do you?
No I don't, but I can plumb one in as a temporary measure I suppose. The stock boost gauge goes to its normal spot.
@nickm it's not missing, it's just not revving. It does
eventually get up the rev range, just not as quickly as normal, and as I said it sometimes will be flat, then suddenly pick up, then be flat and pick up some more etc.