The ALDA has a metal seal/cap which must be destroyed to remove. Under that cap is an adjustment, slotted-screw type, with a lock-nut (10mm?). Loosen the lock-nut and CCW the adjustment ~1-1/2 turns is about what most have found works, ... the official FSM adjustment method is based on minimal visible smoke at takeoff.

Very difficult to adjust with the intake plenum on, I've done it twice, this time I think I'll just order the gaskets and R&R the intake.

Test the vacuum/pressure line to it first, if it doesn't hold pressure, it is toast. Some remove the whole thing, but as it is part of your overboost protection, others say don't. I've been happy with adjusting mine.

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Gone to the dark side

- Jeff