Since it fires up for a few seconds when you prime the intake, you can rule out a spark issue. It's easy enough to check for fuel pressure at the port on the rail by simply pressing the valve after cranking. fuel should spray out. If you have the means to hook up a fuel pressure gauge, you should be around 50psi. If the fuel pumps aren't running during crank, check to see if they are getting power. More importantly, since this is a 1994, I would check the condition of the engine wire harness unless you've already had it replaced.