If you can find original-equipment Strombergs they'll probably work OK, but stay away from the repops. Like a lot of the reproduction stuff, I've heard some pretty bad comments about the new ones that are on the market now. Like any dual-carb setup, there's a distinct possibility you'll be over-carbureted in the low speed and midrange area.

I had a friend back in high school who installed a dual-carb manifold on a 216 and adapted 2 Strombergs to it. After several carburetor fires that blistered the paint on his hood and almost burned the car down, he went back to a single Carter 1-barrel.
Jerry




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