In a message dated 12/27/01 11:09:10 AM Eastern Standard Time, DMCVegas@xxxx writes: << 2. Can an EFI system run dual MAP sensors, or do they require a single only? >> I've only seen single map sensor setups. They are available in 1, 2 or 3 bar versions. 1 for normally asperated and 2 or 3 for boost applications. Check out www.sdsefi.com. Lots of EFI info. << 4. With no mechanical distributor on a DIS EFI system, where does the vaccum for the Vapor Canister & rotary climate controls originate from? Same place it always did. << 6. Does a turbo charger need to be mounted horizontaly? Can it be relocated to a verticle, or angled position? My only concern would be the lubrication requirements for the impeller. Certain models may be sensitive to orientation, unless they were designed to run dry or fully sealed. I don'tknow the answer to this one. Jim