if running on 3 the first thing u should do is check compression just to rule it out, esp after giving it alot of stick

if there is no fuel coming out of the fuel metering unit unscrew the top of the metering unit and check to see if the plunger has got stuck, this is what the flap pushes against to release fuel, or another way is to tap the top of the metering unit with a hammer whilst someone cranks the car over and if the plunger is stuck it may release and the car will fire up