Can upgraded power cords help my setup?

sometimes it seems that audiogon cable threads are the last place in our society where people are outraged that manufacturers charge excessive prices,  and that strangers might pay too much money for items that may not even need...

dynaquest4,
Did you get this site mixed up with the Home Depot forum. The people on that site probably have as much interest in upgrading power cords going to their appliances as you do upgrading the wire going into your audio system. Just think of the impact you could have on that site!

Core power technologies which make excellent transformer 
Cables or whole system 1200 watt,and 1800 watt much better value ,they sell a Excellent just power cord. 
Cullen  I think makes then.  CULLEN WHICH WAS or still is associated with Wyred 4 sound cullen has a $199 csble 
Under A.C. cables on Audiogon that will beat cables several times this including Shunyata venom 3 . With a 30 day money back trial
Even the $99 very good and solid Copper connectors that alone is key under conductive index the standard connectors brass 
Are 4x Less conductive a contact then Copper. Progold,, messy silver paste NG compared. A.c. connector, and preamp tube pins ok
As ling as it doesnot get to hot like a 211 tube or power tubes.
You should treat your connectors,and let then dry an hour first 
With the bedt product and used by NASA. Stabilant -22. I use on every contact in my System last for years and enhances the electrical conductivity I have tried then all. There WAS something called tweak that was out but was a 8-1 mix nowhere nears as good.. The 22 at the end just jeans cut4-1 with alcohol. I use just Stabilant, straight thin coat. 
All connections clean hood with 99% Isopropyl slcohol.it evaporates clean and Fast. Check it out.