I had my last one up to 100 on the speedo once. Just for a second to see if it could. It did but it didn't like it.
It had 4.10s, 35s, 4spd, 205. The engine wasn't stock tho. '78 350 with flat top pistons (9.5:1?), a little cam, Holley, Edelbrock , headers, MSD.
I've had my "new" one up to 55.:)