I have a 1995 blazer 4.3 vortec that wont start.
so far i put in the following parts.
1)timing chain and sprockets
2)water pump
3)alternater
4)ecm and it was flashed to vehicle vin
5)new distributor cap and rotor
6)and new ignition (distributor)
7)new coil pack
8)new control module
9)spark plugs and wires
10)

 

Did you check fuel pressure? Have you determined that the distributor is clocked right? Those are the usual culprits....

 

I just did post budwzr8. mine was cpi assy. but I have to find out why mine went out again