i have put new fuel pump, fuel sending unit, fuel filter, redid tdc several times it acts like its running out of gas spuders and back fires like its got a shotgun under neath it please help its for sale 600 if anyone wants it 1988 5.0 hatchback 5 speed

 

What is your current ignition timing at idle? Have you made any adjustments to your valve timing?

 

Run a compression test. Could have cracks between the valves in the heads. This will show up in a compression test and leakdown test.