Carter AVS 4966S choke question

Sounds like all you need is the 68 AVS choke since you have the correct 68 intake manifold. Should just take a 1/4-20 short bolt in the rear hole. I use anti-seize and a stainless steel bolt. It should be obvious how the choke mounts with the carb off. Make sure the bolt does not interfere with the carb.