Originally Posted by elemental1985
this is an adjustable SFMU. its adjustable from i think 14-1 down to 6-1. It also has the ability to control idle fuel pressure (like if you have bigger injectors and need to lower the fp to make them idle right) but you can just leave that fully open and just use it as an FMU.
you still have different rings and springs which allows it to adjust to 14-1 to 6-1