what voltage should I have at the coil

Ya there are a lot of variables, but sounds like its stock, have someone crank it and you should see near battery voltage at the coil if it's at 8 or lower there is a problem if it starts you should see 7 to 9 running, a few more volts will cook the coil a few less will cause a bad running motor. Checking the coil itself if you have correct voltage is the next step by a spark check or ohm out the coil.