coil fire??

i'm back. took OFF neg wire at coil (the new coil), jumped hot wire to it from relay, got fire to it, then checked for fire at neg post, fire there, BUTTTT went away when i touched dist ( neg) wire to it, bad dist, somehow no doubt. . i have another dist i will put new points condensor in. should i sray carb clean into dist or is that not smart??? like i said, yesterday, i had fire at points but then not there or neg side of coil. ( for a few seconds. i used to buy new repo wiring harness thru a man and his wife, he furnished all the suppliers back then anyone how if he still does? and how to get a hold of them?? i have cat from classic industries, they show them avail at $219, WOW1 i used to get them for like $85. and i thought that was a lot bac then ( 90's into early 2000. ( but then the price of gas and oil was?? then LOL) back to work on another dist.