Looking to change my 1985 D-150 sb from AC to Non AC, I think I have the correct crank pulley, as I understand I will need non AC alternator brackets, what about the water pump pulley and PS setup? Whatcombo of pulleys/brackets do I need?...FIY, I am going from a factory 4bbl setup to a RPM air gap with 600 AFB setup, will the factory kickdown bracket work with this changeover??