What fitting is this?

Edelmann #258302 is most likely the adapter for your master cylinder. Most parts stores stock them. If the store has a different brand,they should be able interchange Edelmann to their brand.

Thanks for that info. I have purchased something like this and I'll let you guys know if it works out. If it doesn't work I'll have to drop back and punt. Hoping this'll work because I want to focus on the EFI conversion.