After reading the ominous warnings about the ALDA failing due to adjustment I was unwilling to try it without a spare on hand. after a close examination of several ALDAs I think they are more robust than you might think. In short make your boost adjustment ( it was designed to run boost at the spec without ill effects ) They were delivered under spec to help meet Nox levels and the spring looses tension over time. check to see if you have slight smoke with the engine at temp under full power under load at 4000rpm. turn out to richen in to lean a little at a time. If you break your ALDA let me know I have several spares I'll part with cheaply.

Bob D.