I had two 1970 Montes one 1971 and one 1972 . They are very much like a big Chevelle around 150lbs more . I had my 1971 Monte Carlo weighed it was 3760lbs With the A/C removed . The car was a stock 350 270HP TH350 12bolt 308 open rear end car . It ran the stock Q-JET points dist with a curv kit a dual exhaust with no headers and had tail pipes . That car ran 15.50s at the strip . I was yonger at the time and beat that car to death . On the street that car would hook better and beat many cars . A rich kid had a built 1973 SB Vette with a 4speed the monte smoked that car . But I did burn out three TH350 trans and break lots of engine mounts . I latter chained down the engine .