most likely ,you just need to reolace the coil
Usually misfires can be attributed to a bad plug, wire or coil.
I have replaced the coil and distributor cap.
the coil is behind the motor
Heater coil
yes front coil springs with front shocks on a 1987 cadillac brougham rear wheel drive
Replace the ignition control module
There is no such thing as a coil relay.
On the distributor cap
Click the link.
Bad coil? Bad distributor cap? Bad distributor rotor?
behind the drivers side head
Perhaps a bad coil? I have a 1986 ford club wagon 150-302 with fuel injection. It turned out that the pick up coil in the distributor was bad and I had to replace the distributor. Not an easy job.