My A100 seats weigh in at 25 lbs. with the Superstock aluminum brackets attached. They are much more comfortable than I thought they would be! I'm glad someone posted the weight of the bench seat as I threw it away years ago and never weighed it!
Heard they were made by Bostrom, not sure if that is correct.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.