89 4.3 WORK VAN 80,000 MILES

1989 GMC Safari

I am having problems getting fuel out of the injectors and I think I have tried just about everything there is. New fuel pump, filter, diffrent injectors and even tried switching out comps from a working 4.3. I am getting fuel up to the regulator but nothing from that point. Can anyone offer any help to my problem? Its driving me crazy: )

TY, john
April 29, 2007.

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