Yes, the SAFC, SAFC II and NEO are three of the most common fuel controllers. If you have one already you don't really need the Lex AFM unless you've already got one handy. As I mentioned, some people found some tweaking was needed to get the car running smoothly but this can be accomplished by manipulating the physical hardware if you don't have a fuel controller. Also, as previously stated, a baseline dyno will let you know if you're running too rich or lean at WOT and they should be more than happy to tell you what your car is idling at.
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