Sprockets? Yeah, well sorta. The stock ratio will do the ton. You don't NEED highway gears.
I did it on the Lowlife running 18/46 which to many people is already a high ratio more for stop light drags,
But my fat ass needed a big bore motor to get there.
Roadkill did it on his Dad's Amen rigid chop. I was there to see it.
I bet he has done it on his own Amen Savior as well.
I did 90+ with a stock 77' motor in one of my Amen Saviors. I bet it would have made the ton if I hadn't chickened out.
The bike I am riding now (Fatso) will do it. Just haven't got all the bugs worked out of that bike yet to go there. This summer maybe,