66 dart with 76 slant

What i have is a 66 dart that had a slant six with a automatic in it from the factory {long gone}Car now has a slant six with i think a 76year model slant with automatic. Car came with points wiring now its has a motor with electronic wiring how do i wire .wiring in car looks good and motor has all the wiring unpluged from its donor car buckhead.MY question is whats the best way to hook up? Should i use part of the motor wiring{ with the car wiring}questions on dist. and volt reg hookup ,trying to upload pictures from my andriod phone but cant figure that either