I saw this movie when I was a kid in early 80's, I think it had Harrison Ford drive up in this 70's Chevy Camaro that was deep blue with a set of 4 aces painted on side panel behind driver window. He gets out of the car to meet someone else and says his name is Ace and points to the 4 aces on side of car. The car seemed very customized with cowl hood and large rear tires. I am sure it was Harrison because I had just seen star wars then and it stuck in my mind. It could have been filmed before star wars. Ive been trying to figure this out for 10-15 years now. Any ideas?

Heroes (1977) (http://www.imdb.com/title/tt0076138/reference)

That was an orange camaro in Heroes. And the one I remember was a custom car that looked like a show car and was street driven not a car used on a track