The Circle Track 500 cfm 2G begins with a .135 needle and seat assembly for adequate fuel supply and a small diameter float for maximum float bowl volume. The cluster is modified based on engine and vehicle specs to keep the fuel curve correct throughout the RPM range. Idle, transition, and accelerator pump circuits are modified to application. Tapped to accept Holley jets for ease of tuning and finished with a 3/8" fuel inlet.
Note: This 2G is modified to 500 cfm from a smaller core. The casing ridge has been removed, but it will pass a gauge test. Venturi: 1-3/8", Bore: 1-11/16".
Stage 1 Carburetor
What Are JET Rochester 2G Stage 1 Carburetors Common Pros and Cons?
JET Rochester 2G Stage 1 Carburetors are designed for circle track applications needing 500 CFM. They are also modified to use Holley carb jets, to make tuning easier. There are not any known cons to the purchase and use of this carburetor.
Which JET Rochester 2G Stage 1 Carburetors Are Best?
There is currently only one carburetor available. This is the 500 CFM Circle Track 2G Stage 1 carburetor from JET Performance. When confirming this carburetor is correct for your application, ensure it is the correct CFM size, as well as the correct fuel inlet, venturi, and bore dimensions.
How Much Do JET Rochester 2G Stage 1 Carburetors Cost?
The GM 2 JET Rochester carburetor is available in the range of $400 and $430. The rebuild kit for the Rochester 2 JET carburetor is available for under $50.