See that? Not so hard. I use that system when I have no idea what I am dealing with. This way no matter what other issues there are, like carburetor problems, at least once it is timed you know that it will want to start. Now you can put the spark plugs back in and hook up the ignition wires. Leave the HEI hooked to the battery for now. Add some fuel and see if it fires. If it does, shut it off and have a well deserved beer. Then we can start getting it tuned and operational. Is there coolant yet? You don't want to run it without coolant that is why I said stop for now until all the other things are in place.