i really need my van to work already please help! on 1991 Ford E-250

So my van was running, but real bad i checked spark plugs the gap was off alot i got new spark plugs and gapped them properly now my van wont start ?

Asked by for the 1991 Ford E-250
4 answers
Did you replace the wires in correct order? Maybe left anything disconnected? Recheck your work. Need more data.
may never have been the plugs. have your fuel pressure checked for possible fuel pump failure.

ck fuel pressure with a gage it is fuel injection
I also think possibly fuel pump. I have found that if your able to have someone try and start the truck while you pound on the tank with small mallet. it may start. Then you know its a fuel condition.