i need some help with my 72 dodge demon

i have a 72 dodge demon i am starting to restore. It had a slant six in it with a 3 speed on the floor and i am wanting to change it but do not know to what any ideas. I am not wanting to drag race i just want the sound and want to burn the tires off and look good also where to get good cheap parts and any helpfull hints along the way. i would appreicate any information i can get