did you replace the resistor wire from the ignition switch to the coil. should be replaced with a non resisted wire so that it gets a full 12 volts when either starting or running. with a points ign it had 12v on start 9v on run
ron

http://s908.beta.photobucket.com/user/padresag/library/turned%20works
http://s908.beta.photobucket.com/user/padresag/library/furniture
and a little history of where I come from
http://forum.woodenboat.com/showthread.php?156542-old-boatshop-in-Steveston