I have a 94 5.0 GT mainly stock.It is hard starting and especially in the morning or if it sits a few hours in the day.I did have a new fuel filter installed and also the fuel pump is working.If I run it for a while it mostly starts but not always.It seems this problem started after I blew a radiator on the road and the engine may have had something electrical get wet.I was careful installing the radiator so it is not a butcher job and I also always run name brand hi-test help thanx Ron