B2200 Questions

My dad just gave me his B2200. I have a car already and love working on cars. The engines is okay but needs some tlc. I was wondering is their any aftermarket parts for this 2.2L. And who makes this motor: Ford, Mazda, who. Sorry if i seem dumb but i am not a import or ford guy. i drive a camaro. I want to fix the truck up a little and make in run smooth. Another question, Aftermarket exhaust????

thanks
Justin

I was also wondering is it hard to switch this motor out for a 2.6, 3.0, or 4.0?

MazdaTruckin.com: B2200 section (http://www.mazdatruckin.com/B2200/B2200.html)

Lots of info there, even more in the forum.