GTX....

I'll have to ask. They had several different cars.......... @Dartnut ?
This brings back a lot of memories...........
Cranbrook to Spokane and back all in the same day........ I used to go there almost every second weekend in the late '80s and early '90s to bracket race.
I had a 440 4 speed '69 Super Bee, my brother had a '69 Chevelle big block 454 auto, and one of my other brothers had a 440 auto Duster that he raced a few times and a '70 Challenger with a 383 auto. A friend of mine had a '72 H.O. Trans Am and later a '79 T/A. Another friend had a '72 Demon 340 auto and his brother's '73 340 4 speed Duster that he raced a few times as well. Another friend of mine had a '75 Duster 340 auto, and then a '64 Belvedere 440 auto that he bought from Ben Snowbar as a roller.
BTW, we would always drive down there and drive back, (about 200 miles each way), no candy asses here!
I remember Orville was running it back then and tech inspection was a joke!
Actually, i won my bracket one year at the Mopar meet down there with my '69 Coronet 4 door 318 car!