Hey all, so i put my timing light on my blazer to see wat its doing, and its missing on cylinders 1,3,5. Left side..... Right side is showing NO misses.. but b4 i found that out, i checked compression and front and middle is running 120ish and back is running 110ish, on both sides. left side spark plugs were black. thats why i checked the wires. changed wires and spark plugs still missing on left side only... i took cap off and cleaned the connections and rotor. still missing... any ideas?? i also put the timing light on the coil wire to the distributor and it just goes to fast i cant see it missing...... is that sensor in the distributor got anything to do with it. im so lost... lol