[tholyoak]

If it is a red/black and purple wire it is for the tank venting valve or evap valve depending on what you want to call it.

Also, if I were you i'd seriously reconsider using the early 3-point motor mount. There is a reason Porsche changed the design when the motors go larger. If you want to rebuild one I have a couple 4-point mounts kicking around I'll be happy to send you one for the cost of shipping.

-Todd