1975 Monte Carlo in mint condition. Has 68,800 original miles and runs like new. Dual exhaust 350 engine, 350 tranny, $7,299. 1975 saw the arrival of the catalytic converter which was needed to meet the new California emissions requirements, which cost consumers more in the way of lower octane unleaded gasoline, but helped out with fuel economy, spark plug life, and also muffler life. The engines in 1975 were basically carried over from the previous year, except that GMs high energy electr