i have a 1994 850 turbo sedan and i just ordered a manual boost controller and i need to kno what a good psi to run would be
please help!!

10 PSI. Be on the safe side. I would also upgrade your Turbo hoses and vaccum lines as well. Stylin Motors Inc. for both.

i would'nt go over 13..
but i would suggest making shure all of youre hoses are in good order and you have good oil and you might want to put an intake on..
by good oil i mean synthetic something..