mass flow sensor??? that year bronco wouldn't be mass air so what sensor did you replace?
agree that fuel pressure is low, buy the complete fuel pump assembly from ford. best bang for your buck.
when you set the timing did you pull the spout connector?
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94 Bronco XLT 357/E4OD/Warn HS9500I,6"ProComp Stage II 35x12.5x15 BFG AT's,4.88 gears/AussieFront/rear open,Edelbrock efi intake,jba headers
2007 xlt F250 CC 6.0 stock, 33 ToyoMT