You know, my brain was off when I replied to that. Your AFP system should have come with a beautiful install manual that has everything you need to know about the whole setup, including the adapter plate for the fuel servo and its mountings. If your engine did not come with this manual (a three-ring binder by itself and not part of the engine manual), then you should ask Don for a copy. It also has everything about installation, tuning, troubleshooting, etc., for the while AFP system.
Patrick Kelley - Flagstaff, AZ
RV-6A N156PK - Flying too much to paint
RV-10 14MX(reserved) - Fuselage on gear
EAA Technical Counselor #5357