I am going to put a plenum divider in also. Made the template last night. Should be today's lunchtime project along with dressing up the adapter.

Be careful with the buna n gasket, it only has a maximum service temperature of 200 degrees and neoprene is 250. You can go to your local parts store and get sheets of regular gasket material and cut out what you need. Just tell them what you want it for and they can give you the correct material or it will come in multipack of different types, with an explanation of each one. I forget the price, less than $10 and I'm pretty sure less than $5.

I'll check on that carb this weekend.

My car is a 1966 with the original engine, therefore has no EGR crap. The manifold is a spare from a newer engine that had one so you just block the port from the outside. Thinking about ways to block off the hole you see also to make a flatter plenum floor.

I added my drawing to my previous pics. Didn't have time to scan so just took a pic and posted.

thanks Reed that clears that up.
Thanks valiant1966, thats very helpfull
However greenie9 is out of stock on the 2bbl carbs so that will hamper this mod for a while.

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85 d-100 HEI 2BBl
06 Toyota Corrola

Got some good news, I guess. The carb is available. I forgot that this was Good Friday weekend so the weekend came sooner that expected. What a nice surprise! I'll PM you with details. If you aren't interested, let me know so I can post it.