It might be an idea to send a PM to B13. He is an almost daily visitor on topklasse, and perhaps you might like to give him your phone number. He (ian) will most certainly establish contact with you. Regards Styria
TIP: renew the hose which runs from the manifold to the MPS... they are very brittle/cracking up with age and even the slightest vacuum leak will give incorrect reading to the MPS = poor running.
My mechanic had had it apart and the brass diaphragm is shot.
He is getting it rebuilt. Should be ready by Friday.
I have also found a second hand unit as a backup.
Finger crossed.