I have a big problem with my 1966 mustang. When I go to start it up blue smoke come out of my tail pipes as well as a rough idle almost killing the car but I can keep it from dying by giving it gas. also the same thing starts to happen I drive it around and when it either heats up or I just get to uneven ground it stutters and tries to die. I am at a total loss and I don't want to put it back in the shop due to it being a daily driver also the shop that I have to go to the owners a crook that has put jank parts on and i am having to go threw and fix his BS. It is a 289 2v with a C4 transmission.