unburned fuel causing misfire, what is it?

[RanMan]

Have you ever put Racing fuel in your car? What about a lead additive? If so, your O2 sensor is most likely the problem. The ECU relies on the readings from the O2 sensor and if it is getting poor readings, then you will get poor performance.

[OsoSlo z28]

if it's not your plugs, put some injector cleaner in. maybe one of them is sticky and putting too much fuel in there. also, check the voltage coming fromt he distributor and check the continuity of your wires. also check and make sure you put the wires where they need to go...#1 wire to #1 cyl.....hope this helps.

[codyhoover]

Bocsch Platnum +4 only work if your ingition system is beafed up or is like new. there gaped at the factory(whitch you probaly already knew) and its almost to big for the stock ignition to keep up with above 6 grand even with better wires. i hade nkg wires and +4 and misfired above about 5700