Ok so i have a 2000 blazer. its a v6, and everything is stock. I don't know much about cars so i was wondering if someone could teach me the first few things to do to increase my horsepower. Thanks if you respond to this.

 

Keeping it PROPERLY tuned is difficult enough for most people.

Buy a Factory Shop Manual off eBay. Modded vehicles controlled by a computer are difficult to diagnose, unless the computer has NEW baseline specs in it for the mods.

Some mods aren't Plug and Pray anymore...

 

you should be able to look around the site and use the search form the performance stuff. If your looking for increased horsepower i would try to search some things like cold air intakes, cat back exhaust, and pcm tuners.