- Apr 20, 2006
- 24
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I have an 88 5.0 coupe speed density. Recently i set my timing, tps and put all new ignition on. Super coil, wires, plugs, distrobutor cap and rotor. When i pulled the plugs there was a small bit of oil around the threads and signs of burnt oil on the electrode. There is no smoke out the exhaust. When the car is cold only when u rev her up she backfires. But when im driving, it runs very strong and smooth. The plug gaps are set to the proper specification. Each time it backfires it always comes from the passanger side and its not just a little pop, its very noticible and irritating. Are my valve guides wore out? piston rings mabey? there is only 161 k on the motor and its stored away every winter. Somebody please help!!