What drive ratio do I have on my Tige V drive?

I have a 2001 23V Limited Riders Edition with the 350 MPI (315 HP). I am currently running a OJ prop (came stock with the boat). According to the branding on the prop it is a 14x18 prop. I think I have the Synchro Teck 1.5:1 drive (at least I remember Tige Watersports telling me that the boat has the Synchro Tech), but now I am not sure. I see a plaque on the drive or transmission that says: Velvet, Ratio 1:1. The drive portion beyond that is painted blue. I am just guessing that there must be another section of the drive that I can't see that is the Synchro Tech that has the 1.5:1 ratio. Do I have the Synchro Tech 1.5:1?

I am asking because I contacted Acme Marine to order a new Acme prop and use the OJ as a spare. They want to know which drive I have so they can sell me the right prop.

I sent this same message to Tige. But I just figured to throw this out here for a quick answer.