Changing Intakes and Carb

[55Merc]

It’s been awhile since I posted but after many setbacks and unavoidable interruptions, I’m finally in the process of changing out the original “Teapot” setup on my ‘55 Mercury and replacing it with an ECZ-B and 4100 Autolite. Unbeknownst to me when I purchased the car (it wasn’t running) I found out later that the original Load-a-Matic had already been replaced with a ‘57 up distributor. Of course, when I got it running, it wouldn’t run correctly but I nursed it along for awhile while I started collecting parts. Long story short, the carb I have is a 4100 1.12 Venturi for a big block. 1.08’s are hard to come by but a guy on eBay is fabricating and selling bronze throat adaptors that press into the bores of the 1.12 4100’s to give them the same dimensions as a 1.08. You still have to re-jet the carb and do whatever else is necessary but after mods are completed, the 1.12 is supposed to perform like 1.08 carb for the cost of the barrel adapters ($20+$6 shipping or so) and jets.
https://www.ebay.com/itm/274639725910