I grew up in a time of fuel injection so sorry for the nub question. So i have this beater, 88 sentra, 1.6L 4cyl and its carb'd. I bought it from a guy on here and its been incredibly dependable. For 500 i can't beat the deal. So anyways it takes about 12gal to fill the tank up and i'm getting about 200 miles to the full tank. I recently did a full tuneup. Plugs, wires, distributor cap, whatever is inside the cap that creates the spark(having a brain lapse), fuel filter, air filter, pcv, oil, flush and fill and t-stat. So i expected the fuel efficency to increase w/ all the new junk added. WRONG. still good old 200 miles to a tank. This is w/ 30-40 highway miles a day to and from work and light city driving. It is a 3 spd auto. I now think the carb may need a cleaning but i've never torn into one. Any tricks or helpful hints i should be aware of before i tear into this thing. I'm not a nub, i built the engine in my eclipse, twice(dont ask). Thanks in advance.