Ok, I've just bought a 1997 Ford F-150. It has a v6 and a 5 speed. My question is, Are there any good v8's that i can drop into it? Are there any modifications that i can make to this motor to make it perform like a v8? What kind of options do i have? (keeping in mind that i need this to be somewhat barable on gas because I work 30 miles from home and I work 7 days a week)

What motors can I play with v6 and v8? Doesn't ford make a 300ci v6? Lemme know...