The exhaust emission characteristics of an uncontrolled car using the varicam camshaft timing gear were measured to determine the effect of this device on emissions. To obtain emissions data, a 1962 Chevrolet Biscayne with a 283 cu. in. engine was used both with the varicam installed and with no device. In order to control temperatures, a General Motors temperature sensor was installed with the varicam to allow normal vacuum advance under conditions of high temperature. The following tests were conducted: (1) standard 1968 Federal test procedure for exhaust emissions with both cold and hot start; (2) a closed, constant volume sampling technique using nine (9) repeats of the Federal emissions test cycle (9-CVS). Samples were analyzed for carbon monoxide, hydrocarbons and nitrogen oxides. Tabulated data is presented.