Offenhauser intake dual carb linkage?

[noclinkers]

Hey all, sorry if this is a topic that keeps coming up and I have missed the threads.

I must be using the wrong words in my search because I have been looking for some time and can't find what I need.

I am looking for any info and some pictures of the Offenhauser intake dual carb linkage? I have the intake and two Holley carbs for my 70 292 GMC pick up and can't figure how to make a good smooth linkage.

Thanks for the help!