wen I tight up the srew in top of the fpr(so I gess leting the diaphragm open less) the car feel way more torquy (huge difference at midrange).

tighting=more or less fuel pressur?

more fuel pressur=running more rich or more lean?

setup:jdm96h22a/p13/310cc/f22afuelrail/in/ex/uncat/adj.fpr