I believe that plenty of the systems will work. Just fine.
FiTech, Holley Sniper etc. use a throttlebody with a standard four barrel (or two barrel) carb bolt pattern. The sensor inputs are all compatible of course. It's just the Edelbrock Pro Flow 4 that comes with it's own manifold (with fuel rails, I believe) which seems to get universally good reviews) that is not directly compatible with the Magnum heads.
