Baseline Jetting that comes in current new Weber carb models.
Note that this may not be the jetting that is in an older model Weber carb. Before you start tuning any Weber carb it is recommended that you remove the jets and make a list of what your carb currently has. You cannot make proper jet choices for tuning if you do not know what you are starting with. This list is so you know what will be in any new carbs you purchase from us.

Carb Model
Part #
Main Venturi
Aux Venturi
Main Jet
Em Tube
Air Corr Jet
Idle Jet
Pump Jet
Pump Exh
Needle Valve
Choke Type
32/36 DFAV
32/36 DFEV		 22680.056
22680.070 		 26/27 3.5/3.5 137/140 F50/F66 165/160 60/50 55   2.00 WATER
ELECTRIC 
32/36 DGV 5A 22680.005 26/27 3.5/3.5 140/135 F50/F6 165/160 55/50 50   2.00 MANUAL
32/36 DGAV
32/36 DGEV		 22680.051B
22680.033B 		 26/27 3.5/3.5 140/140 F50/F50 170/160 60/50 50   2.00 WATER
ELECTRIC
34 ICH 15290.027 29 3.5 165 F6 190 50 55 40 1.75 MANUAL
34 ICT 15290.035 27 4.5 130 F78 160 52 50 40 1.75 NONE
38 DGES
38 DGAS		 18930.032
18930.020 		 30 4.0 145 F50 185 45 70 30 2.50 ELECTRIC
WATER 
40 DCOE 151 19550.174 32 4.5 115 F11 200 45F9 40 50 1.75 MANUAL
40 DCNF 12 18950.060 30 4.5 125 F24 220 50 45 100 1.75 MANUAL
40 IDA 31,3C1 31300.001/002 28 4.5 125 F26 180 55 50 000 1.75 NONE
40 IDF 70 18950.138 28 4.5 115 F11 200 50 50 55 1.75 MANUAL
44 IDF 71 18990.030 36 4.5 135 F11 175 50 50 55 1.75 MANUAL
45 DCOE 152 19600.060 36 4.5 145 F16 155 55F8 45 40 2.00 MANUAL
46 IDA 3C,3C1 31360.001/002 40 4.5 170 F24 145 70 50 100 1.75 NONE
48 DCO SP 19630.007 42 5.0 180 F7 160 65F8 45 100 2.50 NONE
48 IDA 19030.015 37 4.5 135 F7 120 70F10 50 000 2.00 NONE
48 IDF 6 19030.021 40 4.5 150 F2 180 55 50 000 2.00 NONE
50 DCO SP
50 DCO 1 SP		 19650.001
19650.002 		 46 5.0 180 F7 160 65F8 45 100 2.50 NONE
55DCO
55 DCO 1/SP		 19700.001
19700.002 		 48 5.0 180 F9 180 60F8 45 100 2.50 NONE