This Quadrajet has code 17084205 which apparently means it was made for a 1984 Chevy with manual transmission. It has an electric choke. It has been sitting on a shelf for years. I think I tried running it on my GS about 10 years ago, but I removed it and went back to Holleys, so I don't need it. It has 48901 on the choke, and 58411 and 58409 on the secondary, and 01451 R on the mounting tab. 0764 (or 0264) running vertically on the carb body's secondary side. $50 plus shipping, or you can stop by the WV Eastern Panhandle and save shipping cost. If you need a Holley, I also have a 3359 (DOPF-9510-U) List 4538-S and a List 3310-2 2824. They both need some TLC. $30 each or both for $50.