Not mine, my buddy has two Autolite 4100 289 High Performance carburetors.
One is a NOS C6ZF-C $3000 I've seen this one in person, its the real deal.
The other is a good used C4OF-AL, manual choke SOLD
He's old school and doesn't know how to turn on a computer or take digital pictures.
Located in middle of PA.
Rodger 517-282-4738