That should have a mechanical fuel pump unless it's been retrofitted, so no there should be no noise.
It's dead simple to test though. Pull the fuel line and crank her over. It will spray a bunch of fuel if it's working. If nothing or only a little comes out then it's got issues.
I also had a lot of problems on my old GM with fuel filters. I had to replace them about once every 3 months. They're only like $5 though, so no biggie.
I miss my old 78 Blazer. 475hp built 327 from a '67 Vette.
