Car shaky after changing spark plugs

I have a 1994 Chevy cavalier I just change the spark plugs and spark wires for no reason just to make it run a lil better the wires are in the right spot the
gap is correct the plugs and wires are all seated correctly I did not install them incorrectly so please don't try to tell me to double check I have already my grandpa says it is a bad coil lack but I don't know how much I trust that since the car was working perfectly before I changed all the wires and spark plugs and the spark plugs and wires are the right kind now my engine kinda sputters and shakes and hesitates when I start it I've also lost quite a bit of power any ideas on what's wrong I'm open to any advice here
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Notasponge wrote:

First, I would try to narrow down which cylinder. It's easiest with engine running. You will need insulated pliers or plastic pliers, plastic tongs, etc. Pull one wire at a time and see if it makes a difference, then put back on. When you pull the wire that does not change the rpm then that is the wire/plug/coil that is bad. You can also do it with engine off. Pull wire, see if it runs, etc. Once you narrow it down then ohm the wire. If no ohmmeter, then see if it sparks to ground. This assumes nothing else is wrong, like vac leak, maf leak, etc.
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On Tue, 06 Sep 2016 00:18:00 +0000, Notasponge

Gramps may be right. Pulling off the wires you may have damaged one or otherwise broken a connection. Could have even cracked a plug. Follow the instructions in the other post to narrow down which one it is.
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