Hi, my name is neil, i just bought a 1971 240, and im in the process of doing a tune up, when i got it earlier today, it wouldnt stay alive, it would half idle with the gas pressed down a fair way, but after a spark plug change, it will have some semblance of idling, but it does not want to rev, but if you work the throttle a bit, once it gets past about 1500 it will rev fine, is this just a carb problem, what can i do to fix it? Also, back to my original quesiton, what Type of oil, filter, and how many quarts also also, can anyone fill me in on how to change the oil in the SU carbs, sorry for any stupid questions, im pretty new to these cars thanks -Neil