Need help with Speedcal Settings

[H What 4.6]

I just got my car back from getting 373s put in and am trying to set this speedcal... can anyone tell me what the stock speedo gear is if i had 273s? I think its 16 tooth but want to be sure....

and i have no impression on the gears yet because my new KC clutch only has about 250 miles on it....

but thanks for any info on settings for 273 to 373

 

[StangYellow]

http://lib.store.yahoo.net/lib/mustangtuning/speedcal.pdf