94 FORD TAURUS SHO 3.2

I have a 94 Ford Taurus SHO 3.2, I have a anti- freeze leak, but thats the least of my
worries, I just recently got my SHO running again after sitting for a year. (this car is
my baby) anyway it has developed and chugging or acts like it wants to die when I am
stopped at a light or parked. When I put the car into park it seems to stop. Then twice
now its seems like its going to blow up, smoke starts come out smells like burning
something, but the car isn't over heating, then when I drove again it stopped. There is
oil in it, seems like it maybe leaking a bit not sure where or why, I don't have to put oil
in it often. I have an new alternator in it, new battery, and starter. I am always filling
the reservoir or the anti-freeze, but the radiator is completely full, and when both are
full the coolant light comes on? What the &^$% ? When I ask questions the guys at
the auto parts store they treat me like a dumb girl and don't get that it's a SHO and it's
different and the SHO parts are not the same as a regular Taurus. This is my second
SHO and I love them, even tho I know they are money pits, but fun to drive and race.
I don't race mine, in fact I have never opened this one up, I am the 3rd owner and it
has 129,000 miles on it. If I need to be more detailed please feel free to ask me, as I
am a girl and not sure exactly. Thank you...Melyssa