How do I tell if the spark plug wires are connected properly?

The vehicle is a 91 Chevy c1500 with a 350 EFI (throttle body) engine. It has almost 150k miles. I have had a very bad skip for some time. I changed fuel filter, air filter, spark plugs, spark plug wires, distributor, and distributor cap. I have also run a fuel system cleaner through it. Since replacing the last three things the skip has become worse leading me to believe the wires are connected wrong. Any help would be much appreciated. Thanks...How do I tell if the spark plug wires are connected properly?
check the wires to make sure they are conected properly and not loose, If you changed the distributor you may have put it in out of time and will need to set the timing on the engine, or pull it back out and reinstall it correctly, it's real easy to check it but you'll need a compression gauge to find out when number one cylinder is at TDC then work from there. Get a manual for it, it would take to long to explain the steps here. hopefully it's just a loose wire, you may want to check the distributor cap to make sure it's tight, there is a notch that the cap sits into on the distributor, if it's not in right and is sitting crooked that can cause problems.How do I tell if the spark plug wires are connected properly?
as long as they made a ''Click%26quot; noise when you snapped them in then they are in good.. did you gap the spark plugs before you installed them? if they didnt come pre-gapped and you installed them without gapping it would cause the problem to get worse... that may be your problem...J-rodHow do I tell if the spark plug wires are connected properly?
did u replace the wires one at a time so as not to get them crossed ??How do I tell if the spark plug wires are connected properly?
a couple of suggestions,open the hood while engine is running,listen for a electrical snapping sound,spark maybe jumping to ground from a lead wire that connects to spark plug.sometimes if you try this at night time (dark out) you may see a spark jumping.get a good pair of insulated pliers (ZAP YOU IF NOT WELL INSULATED) and gently pull off 1 plug lead at a time to see(hear) if you notice any difference on how it idles,each time 1 is pulled you should notice a difference in the smoothness at idle,be care full high energy ignition can give you one H of a jolt.