my low buck street and strip ride

ohlone college is about 16 miles from my house.we went highway 84 to mission blvd.took us 25 minutes to get there, there was a little traffic on 680.it used about 1 3/4 gallons of gas to get there.my gas milage at 3800-4000 rpm was a little over 9 miles per gallon.pretty decent for a solid lifter,cam ground n 108s,w2 heads and 4.56 gears....and the dominator carb.not tooshabby...too big ?right.