Yah, check the plugs also. Good call.
If they look good, see if you are getting spark buy arching it. If you're not,
pull the distributor cap off and see what the in inside of the cap and the rotor looks like. If that looks good, I replace the ignition module. I've had those go out several times. One minute you're running, the next minute you're not.
Even if you go buy one and it's not the problem, it's not a bad idea have an extra one in the glove compartment.