Zookeeper, no doubt even a big block can get good (not great) mpg if one keeps his foot off the gas...but who owns a big block, in a Vette or a Cobra, who got the thing to putt-putt around town? "Yes honey, I really loved the car, AND it just happened to come with a BIG BLOCK. I couldn't turn it down at that price!" Then she tells you if you like it so much, sleep with it tonight...which you do with a smile on your face. LOVE of women and cars is truly hard to explain.