[maclif]

I have recently acquired a '74 914 that has been converted to dual Weber carbs.
The compression and everything with the engine has been checked out and are fine, but the carbs need to be tuned badly. Right now, it sputters and backfires under 3k quite a bit and idles high.
I want to get the carbs (as well as the engine in general) tuned up, but want to have the documentation on the carbs before it is tuned. Where would I find documentation on these?

Thanks.