Hello I need some help, I have a 1980 coupe deville with a 6.0 litre engine
(368 cu.in.) with 46,000 miles. When I start it I run it it for about 30 secs.
then I hit gas pedal and it idles down, it is running fine at this point, I then drive it for about 10 miles and when I park it, it is...