You can download the rom here:
http://www.vpforums.org/index.php?app=downloads&showfile=1000
You need an eprom burner of course to make the roms.
Quoted from Barkingnut:I've done all the hardware work and machine is running normally but, still running like a 6 digit machine I suspect the cpu rom is incorrect. I built it as per forum here: https://pinside.com/pinball/forum/topic/converting-any-system-80-6-digit-gottlieb-to-80a-7-digit
any ideas would be great thanks,
Darin