Carbs missing tags

[ski4life65]

I finally have everything I need to add Twin-h to my 51 Hornet, but the carbs I found don't have ID tags on them. How do I determine if these are correct for the 308? The bases have 1-340 stamped in them. I hate to install new kits if they are for a 262. Thanks for any help

Don

[herm]

Don- 262 Twin-H carbs won't bolt to a 308 Twin-H manifold. Differnt bolt pattern. What is the number on the metering rods in your carbs.? Norm

[ski4life65]

Looks like 75-713 on one, and 75-861 on the other. Since they don't match, is either one a good number for high altitude (Denver). I am sure this could be an issue. I have a box full of parts carbs that I could pull rods from.

Don