Every once in a while I feel a miss at idle on my '82 GTSi. I'm wondering if this is likely electrical or fuel related... like clogged injector, or faulty plug extension? Plugs, wires, and extensions are all new but injectors are not. Doesn't miss driving, don't feel it at all at the higher RPMs, just occasionally at idle.
You can hear it and feel it, but only at idle. So it's either missing occasionally spark or maybe occasionally fuel. It idles smooth for me aside from that.