Just bought a 78 K5 Blazer for $800. The body is almost perfect with no rust, but the motor has no power. I'm going to put new plugs and wires on it tomorrow because I know its missing and then try the timing and the carb. When you give it the gas it acts like it wants to die and then barely goes. It slowly got up to speed and drove home at 70 on the highway, but couldn't maintain the speed up hills. any ideas?