Plugs and Wires

Can someone educate me on the subject of spark plug wires and the plugs.
Right now I sent my distributor to FBO to be recurved for the new cam I installed. While I'm waiting I went and checked all my wires and plugs. I checked my wires with an ohm meter and it showing I have about 6k ohms per foot resistance. Which is normal for the 15 year old carbon core wires that I'm using.
The plugs are NGK's resistor plugs with a 1k ohm resistor in them. Needless to say I have no RFI problems.
What would happen if I installed solid wires? Would the plugs be enough to suppress the RFI?
Would there be any noticeable difference in the way it runs?
Also, is there any advantage to use a projected nose plug?
Thanks for any info you can share.