Clarification of Carb Rules - Prep 1
#27300 from Production Committee · Rule change · TB 19-09 (2019-09 Fastrack)
In Production, GCR section 9.1.5.E.1.b., make changes as follows:
9.1.5.E.1.b – Drive Train Level 1, Induction System
“1. All inducted air must pass through the venturi(s) of the car’s carburetor(s). Carburetor jets, jet
needles, metering rods and needle valves are unrestricted. Choke mechanisms, plates, rods, and
actuating cables, wires, or hoses can be removed. The number of carburetors must not be changed from
stock, unless otherwise specified by the vehicles spec line. All single carbureted cars may fit a permitted
optional carburetor. On cars w Where the use of one (1) 40 DCN, DCNF, IDF carburetor is required
specified, a permitted optional carburetor may be substituted. Permitted optional carburetors are: can fit
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one (1) of the following permitted optional carburetors:
1. Weber 32 DGV/DGAV/DGEV
2. Weber 32/36 DGV/DGAV/DGEV
3. Weber 32/36 DFV/DFAV/DFEV
4. Weber 34 DAT/DATR/DATRA/DMTR
5. Holley-Weber 5200.Carburetor jets, jet needles, metering rods and needle valves are unrestricted. Choke mechanisms,plates, rods, and actuating cables, wires, or hoses can be removed.
Where Weber carburetors are specified, Weber type carburetors can be substituted. The following are p
Permitted Weber type carburetors are:
A specification table follows in the original; it is not shown here.