Vacuum Hoses / EFI

[STROSEK]

I'm installing a stand alone computer system and I want to know which vacuum lines can safely be removed. The oil tank has many and I'm sure some of them can be omitted. I know I need everything related to the secondary intake valve system and the one to the fuel pressure regulator but I'm just not sure what the others do or if they are even needed. This is a track car with the blower removed and no A/C if it make a difference. Even a vacuum hose routing diagram would be great.

Any help on this subject would greatly be appriciated.

1992 964 Strosek

Thanks