Bummer. Here's some more bits of information:

http://www.thecarburetorshop.com/RochestermultipleB.htm

http://www.thecarburetorshop.com/Dual1barrelcarbs.htm

There's also an article on multiple Rochesters on the tech tip page at inliners. Good luck.

1952 1300 Canadian 1/2 ton restomod
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