please help....

im getting ready to have my 84 s-10 bagged and i need to know some info about fuel cells, i know absolutely nothing other than that i need one because of my 4 link.. where can i get one thats a decent price and what else do i need for it to work with my speedometer. i just need to know what i need for the whole thing.. thanksSteve, Vice PrezAllusive Dreamzhttp://www.geocities.com/allusivedreamz