I recently became the proud owner of a 1974 Mercury Comet, bought it off my buddy for $100 it runs though has a 250 straight 6 4dr green lots of small things wrong with it though mainly it runs rough at low speeds, power steering leak, drivers door wont open from outside and interior is rough just looking for some friendly people and perhaps some advice
Look for a tag on the carb, or for the marking. You should be able to get a rebuild kit at any parts store.
rebuilt the carb today, installed a seat belt, and fixed my door latch looking to buff out the paint job soon