I have 77 Fleetwood with a fuel injected 425, it idles very fast. With all the snow we have i just sit and spin the tire when I try to take off from a light or any time. and stopping has to be hard on it it is like power braking it to stop. I have been told the fast idle control heater is out, is this rite? If so where do I get one? I also need a sending unit for my gas tank I have no clue where to get one of those.