i own a 1993 ford f-250. the truck has a 351 5.8l v8 in it. i am wondering what i can do to my truck and engine to get the most horse power and best performance. the truck is 4x4. is there anything i can add to my truck to really give it the best perforance? thank you

 

Exhaust, chips, e-fans, headers, shift-improvement kits (auto or manual), ignition kits, gear changes...can't think of more at the moment.

I wouldn't recomment supercharging if you have more than 70k miles on the engine and turbocharging is too expensive, may as well buy a new engine for that kind of money.

All depends on what you want to spend. Try:
www.truckperformance.com
www.troyerperformance.com