My '71 Corvette is the only car I have left without electronic engine controls. It's fed by a big, dumb, four-barrel carburetor, to be exact-a Holley 850 modified with a secondary intermediate circuit and a host of other performance and driveability tweaksThis Auto Meter wideband O2 is designed for use with gasoline but is adjustable for alternative fuels such as E85, ethanol, methanol, propane and compressed natural gas (CNG). It has data recording ability and has a output for on-board data acquisition systems. It is available in a host of styles that go with Auto Meter's many lines of gauges.The gauge installation was easy as the car already had a sensor. I pulled out the old O2S and harness and put the new AutoMeter/Bosch LSU4.2 wideband sensor, which has a resolution of 0.1 air fuel ratio, in its place. I ran the wires the same way as before: from the O2S in the exhaust, though a grommeted hole in the driveline tunnel, under the console trim and then to the...