How am i able to adjust the fuel pressure regulator on a falcon 4.0l??? am i able to? or do i have to buy an after market inline reulator ? the 4.0l needs about 30psi to run, i have no idea what i have, but its alot more, maybe 80psi.... just won't start.

Check vacuum lines to map senser??
Crimp fuel line or pull fuse then see if it starts initially...Check fuses if its smartlock ?

your fuel regulator os probably blocked. maybe a bad batch of fuel??