HEI issues!
If you are getting nothing (no spark), you should go back to the basics and check to verify that you are at least wired like the attached drawing (relay not withstanding).
Make certain you have a ground wire going to the module at the attaching screws (don't rely on just metal to metal contact from the screw/mount), and that you have +12 volts (battery) at the B terminal of the module and the + side of the coil. You must use 'Heat Sink Paste' (NOT dielectric grease) between the module back and whatever you are using for a heat sink. The module will cook itself in no time without a proper heat sink.
There is no test for the module using a multi-meter (you need a Module Testing machine), so all you can do is verify that it has all the inputs.
Back in the day, we just checked for all inputs and then replaced the module if all looked good input-wise. If everything looks good with the ignition circuit, then I would just go back and make certain the distributor was at least in the ballpark. That is to say, rotor is pointing to #1 plug terminal on the cap while #1 cylinder was at top dead center compression stroke.
If all is well with the HEI setup, you should at least get some sort of spark at the plugs.
Good luck.
If you are getting nothing (no spark), you should go back to the basics and check to verify that you are at least wired like the attached drawing (relay not withstanding).
Make certain you have a ground wire going to the module at the attaching screws (don't rely on just metal to metal contact from the screw/mount), and that you have +12 volts (battery) at the B terminal of the module and the + side of the coil. You must use 'Heat Sink Paste' (NOT dielectric grease) between the module back and whatever you are using for a heat sink. The module will cook itself in no time without a proper heat sink.
There is no test for the module using a multi-meter (you need a Module Testing machine), so all you can do is verify that it has all the inputs.
Back in the day, we just checked for all inputs and then replaced the module if all looked good input-wise. If everything looks good with the ignition circuit, then I would just go back and make certain the distributor was at least in the ballpark. That is to say, rotor is pointing to #1 plug terminal on the cap while #1 cylinder was at top dead center compression stroke.
If all is well with the HEI setup, you should at least get some sort of spark at the plugs.
Good luck.