Bluejon you remember the 263Z very well. It is still roadworthy and I acquired it in 2018. It now lives in my garage in SW Washington. I had been the second highest bidder when it sold on eBay in 2002. After flirting with a purchase on two other occasions we finally did a deal last year. It has the dual carbs and I sent a note off to the who fabricated the triple carb manifold earlier today - I'm hoping he still has them.
Bill