Well hope somebody is listening

When the Diaphragm splits in the fuel valve the fuel will transfer to the vacuum side of the chamber.Now the first thing is' it will suck fuel into your vacuum line and into to your motor ( gas millage problem ) # 2 When the diaphragm splits it will not allow the stop valve to disengage meaning nothing( no reserve)( no on) it needs Vacuum to open valve. Again i have gutted my valve 5 years ago and Supercharged i like the stock chrome on off look and trouble free

That vacuum deal is as worthless as My DPF filter on my 6.7 Cummins. Good luck