MAPed Blue Top Swap, NOT staying running! Please Help?!

[Nanaki]

I did pull the incoming fuel like off the rail and removed the damper and cranked it. Fuel comes out. I will try the same but just by removing the FPR later on.. Im still having a hard time locating one of those washers with the teeth in it.. Im curently not running a washer on the top of the banjo fitting and it isnt leaking oddly enough I thought that it would be getting enough fuel or more than enough that way but the more I think about it that washer does seem to play a part with giving the damper just enough fuel to create the right amount of fuel pressure? If this is true then that is my problem as i am not running one. Just hard to think something that small could cause such a big headache ( If that turns out to be the problem. ) im going to keep looking for one. however. If anyone has a pic of that 'toothed' top cooper washer that would help full to show some shops as they dont seem to know what the hell im talking about even if i draw it out ( from what I have pictured in my head that it looks like. )