I gave my 94 chevy blazer S10 with the 4.3 vortec a tune up(plugs,wires,cap,rotor,air filter,fuel filter,pvc valve and oil change)and now it just wont start.It turns over but wont fire.I have checked the firing order numerous times and its seems to be right according to the book(#1 is front right on the engine and cap and then clockwise 165432) correct me if thats not right.I even pulled the icm out and had it tested and it passed 9 times.I pulled the plugs out just to make sure i put them in right and the were soaked with gas.I did a fuel pressure test and had about 58 to 62 pounds and i think that is pretty good.I dont know where to start next.Any feedback would be great.There is spark

 

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