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Author Topic:   which 2bbl carb ?
Dirt Roller

Total posts: 13
posted June 16, 2002 09:18 PM
I was wondering how can I tell the diference
between the larger 2bbl rochester and the smaller? also does anyone have any rochester jets for sale?

Dirt Freak

Total posts: 408
posted June 17, 2002 07:59 AM
the difference between the larger and smaller 2G carbs is in the diameter of the
narrowest part of the throat of the carb (the venturi). The largest stock size there is
will be 1 3/8". Many others will merely be either 1 1/4" or 1 5/16".
almost all the baseplates were 1.687" diameter, except for the really small 2bbl that came on small displacement Olds and Pontiac's, etc., as well as some v6's. That carb visably is very different tho, than the
standard looking 2G carb.

As for where to find jets, we sell Rochester jets in any size they made. Just let us know how many and what size you need.

Dayton Umholtz, owner
Kinetic Performance

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