need help

my 78 camaro wont start. there is no spark to the plugs. i changed the distribu. cap, rooter, and spring, there problem is the same is there anything that i missed?

Make sure you have 12 volts to the "bat" terminal on your HEI cap. If there is, remove the module and have it tested at an auto parts store. If IT passes, check the pickup coil. You really need a diagnostic manual to find problems in electronic ignition. Bag-o-worms...

Jim