pertronix ignition question

I just installed a Pertronix Ignition system on the / and now I'm not getting any fire to teh spark plugs have followed the instructions to the letter and tripled chack everthing and still no luck. Does anyone have any ideas or suggestions. I'm totally lost on this one, if I cannot get this figured out I'm heading to the local pick apart lot and going to try and find a complete electronic ignition system.
Thanks FABO for any help