Manifold pressure with Ray Jay

[Dick Denenny]

I have a '66 M20E with a Ray Jay on it. Should I be able to maintan around 29 to 30 manifold pressure at 12k?

[Schllc]

Without knowing that setup, I would bet you should absolutely see sea level at 12k. 
simply because if boost tapers off that early, you aren’t getting much benefit at all, before blaming the turbo, check for induction leaks  

i have two Ray jays on the right side of my Aerostar that are failing to produce full boost and they believe the gap between the fan blade and housing had has eroded, I have full boost up to about 8k and slowly drops off up to 19k, and then stalls at 25-26”. I should see at least 29.2 all the way to 25k.

[M20F]

FL250  is 18.8”

[RescueMunchkin]

Off topic but why do so many spell it Ray Jay? It's spelled Rajay

[Schllc]

Courtesy of Autocorrect 

[RescueMunchkin]

The Rajay manual says to go full throttle and full rich mixture when in operation. Is that worth doing with the kind of fuel burn of full rich at 12k?