I have a slant six with a 1 barrel aluminum intake manifold. I want to keep the manifold but install a 2 barrel for better gas mileage.

Does anyone know where I can find one at?

Chris at prolinefuel.com can help you out.

I don't want to run a Weber. That's the only problem with your suggestion.

I think Mr. Gasket makes an adapter. Don't know what kind of carb. you will have to use, though you can modify the adapters.

tried summit racing, they have a TD carb adapter #2025 for around $20

The adaptor doesnt care what 2-bbl you put on it. I just used one of the Mr.Gasket that I got from Stovebolt.The 1-bbl opening may need some massaging to match the manifold. Also either shorter studs or carb spacer, as there is not much space as the adaptor flares in one position.

Dude just make sure you will have enough hood clearance. i bought one and installed it the to find out . the hood would not shut. I have one brand new in the package if you need it. for some reason they sent me two..