So I have a 72 Dart with a Slant-6 225CID. Its a 4 door sedan(I'll try to post pictures later). This is my first MOPAR and I have plans to put a 340 in it but that's a little ways off for now. I was wondering what the best kind of re-wiring kit/system was, that's also cost effective? I've heard of YearOne and PAINLESS, but don't know too much about them. Any opinions on those as well?

 

Classic Industries..... Ron Frances wiring.... the others are good also...
Read over at MAD Electrical and you will get some good time on how to fix some of the bad parts of the wiring system...

Good luck.... Keep us posted....