coil, spark plug wires, or plugs

[old cool]

If a 250 inline seems a little shaky at low rpms as you let off clutch, is that normal? I have been down this road in the past, but I think its helpful to get the experienced guys to share old-school techniques every so often. I really want to rule out coil, wires, and plugs as the problem. What I want to know, is how can I check each component without gauges and meters? I don't have equipment other than vacuum gauge and timing light. (I hope this doesn't need to be three questions. )
LOL: plug check for dummies, wire check for dummies, and coil check dummies