I have a 1995 Suburban 5.7 with about 241,000 miles on it. Since I have bought this thing I have almost replaced everything on it to make it run. Fuel pump, fuel pump sending unit, fuel filter, alternator, battery battery cables, cap, rotor, EGR valve and a starter. Every time I come here I usually get my answer by reading the posts doing a search. This times different. I cannot find what I am looking for. Here is my problem now. The truck turns over but will not fire. I am getting spark, I also am getting fuel. I pulled the cap ( no moisture under the cap) to see if the rotor was turning or maybe lagging to see if it was a timing issue. Looks fine. The spark plugs look fine but ( split fires) I was think about replacing them with some E3s for better ignition and wires because it is the only thing I have not done. It is a little warmer up here at the moment so I am not sure if it has to do with the weather? The only thing I can think of is the TPI flooded the vehicle really bad and I need to pull all the plugs is that possible? A direction is what I am looking for if anyone could help that would be great thanks for your time.