i believe i run a 3.23 in my duster
it has enough up and go and it still allows me to cruise in the highway, 75 MPH at 2800 RPM
that gear is just a ballpark, you can go taller and get off the line faster, but it will lower your top speed ( by that i mean, you might run 70 at 2800 RPM if you go with 3.55s)
i have no experience with the street warrior, but i run a 800 holley (well, a holley style) on my 408 and i really like it
i think carburators are open to personal preference
