The F150 man

Currently I own a 1985 F150 with a Straight 6. 3 on the tree tranny. I would like to convert it to a V8 with an automatic trans but I have no idea where to start. All of my friends are Chevy guys and girls so I cant get any ideas from them. I would like good horse-power along with premium sound. My Chevy friends currently have 355 crate motors or stroker engines. I would like something along that line but powered by Ford. I am aware there will be some conversions that have to be done. Can anyone give me some good Engine/tranny combinations along with some good ole Ford knowledge. I love the old F150 and I want to be able to talk a little smack to my chevy friends. A little funny story to add to this post. An 8 year old kid visiting from maryland who was riding with my chevy pal with the stroker engine told my buddy when we were hauling stuff to the dump in an 8 year old boys voice "Smoke Him" and my friend was happy to comply. It was a little embarrassing.