1971 CARBURETOR SPECIFICATIONS
CHRYSLER CORPORATION
PASSENGER CARS
CARTER CARBURETORS:
CARTER, MODEL BBS:
Carburetor #4955S
Float Level: 1/4"
Pump Travel: 5/16"
Bowl Vent Drill Size: 17/64"
Choke Unloader Drill Size: 3/16"
Fast Idle Cam Position Drill Size: #48 Drill
Choke Vacuum Kick Drill Size: #35 Drill
Automatic Choke Setting: 2 Rich
Carburetor #4956S
Float Level: 1/4"
Pump Travel: 5/16"
Bowl Vent Drill Size: 17/64"
Choke Unloader Drill Size: 3/16"
Fast Idle Cam Position Drill Size: #48 Drill
Choke Vacuum Kick Drill Size: #35 Drill
Automatic Choke Setting: 2 Rich
CARTER, MODEL BBD:
Carburetor #4957S; 4958S
Float Level: 1/4"
Pump Travel: .200"
Bowl Vent Drill Size: 13/64"
Choke Unloader Drill Size: 1/4"
Choke Vacuum Kick Drill Size: #20 Drill
Fast Idle Cam Position Drill Size: #41 Drill
Automatic Choke Setting: Index
Carburetor #4961S
Float Level: 11/32"
Pump Travel: 1"
Bowl Vent Drilll Size: 3/16"
Choke Unloader Drill Size: 1/4"
Choke Vacuum Kick Drill Size: #20 Drill
Fast Idle Cam Position Drill Size: #20 Drill
Automatic Choke Setting: 2 Rich
Carburetor #4962S
Float Level: 11/32"
Pump Travel: 1"
Bowl Vent Drill Size: 3/16"
Choke Unloader Drill Size: 1/4"
Choke Vacuum Kick Drill Size: #28 Drill
Fast Idle Cam Position Drill Size: #28 Drill
Automatic Choke Setting: 2 Rich
CARTER, MODEL AVS:
Carburetor #4966S
Float Level: 7/32"
Float Drop: 1/2"
Pump Travel: 7/16"
Bowl Vent Drill: 3/4"
Fast Idle Cam Position: #50 Drill
Choke Vacuum Break: #44 Drill
Secondary Throttle Lever: 23/64"
Secondary Throttle Lever Lockout: .020"
Automatic Choke Setting: 2 Rich
Carburetor #4967S
Float Level: 7/32"
Float Drop: 1/2"
Pump Travel: 7/16"
Bowl Vent Drill: 3/4"
Fast Idle Cam Position: #50 Drill
Choke Vacuum Break: #44 Drill
Secondary Throttle Lever: 23/64"
Secondary Throttle Lever Lockout: .020"
Automatic Choke Setting: 2 Rich
Carburetor #4968S; 6125S
Float Level: 7/32"
Float Drop: 1/2"
Pump Travel: 7/16"
Bowl Vent Drill: 3/4"
Fast Idle Cam Position: #50 Drill
Choke Vacuum Break: #44 Drill
Secondary Throttle Lever: 23/64"
Secondary Throttle Lever Lockout: .020"
Automatic Choke Setting: 2 Rich
CARTER, MODEL AFB:
Carburetor #4969S
Float Level: 7/32"
Float Drop: 3/4"
Pump Travel: 31/64"
Choke Unloader Setting: 1/4"
Secondary Throttle Lever: 17/64"
Secondary Throttle Lever Lockout: .020"
Bowl Vent Setting: 3/4"
Carburetor #4970S
Float Level: 7/32"
Float Drop: 3/4"
Pump Travel: 31/64"
Fast Idle Throttle Valve or Cam Position Clearance: #50 Drill
Choke Unloader Setting: 1/4"
Secondary Throttle Lever: 17/64"
Secondary Throttle Lever Lockout: .020"
Bowl Vent Setting: 3/4"
Carburetor #4971S
Float Level: 7/32"
Float Drop: 3/4"
Pump Travel: 7/16"
Fast Idle Throttle Valve or Cam Position Clearance: #50 Drill
Secondary Throttle Lever: 17/64"
Secondary Throttle Lever Lockout: .020"
CARTER, MODEL TQ:
Carburetor #4972S; 4973S
Float Level: 1"
Secondary Throttle Linkage: 11/32"
Secondary Air Valve Opening: 31/64"
Secondary Air Valve Spring: 1-1/4 Turns
Pump Travel: 31/64"
Choke Control Level, On Car: 5-41/64"
Choke Unloader Setting: #11 Drill
Fast Idle: 1,800 RPM
Choke Setting: 2 Rich
ROCHESTER CARBURETORS:
ROCHESTER MODEL 2GC & 2GV:
Carburetor #7041180
Float Level: 21/32"
Float Drop: 1-3/4"
Vacuum Break: #41 Drill
Choke Unloader: #29 Drill
Fast Idle Speed: 1,800 RPM
HOLLEY CARBURETORS:
HOLLEY MODEL 1920:
Carburetor #R-4655A; R-4659A
Float Level, Dry: 27/32"
Bowl Vent Clearance: 1/32"
Fast Idle, Bench: .063"
Fast Idle Speed: 1,600 RPM
Choke Unloader Clearance: 9/32"
Vacuum Kick Drill Size:: #39 Drill
Cam Postion Drill Size: #52 Drill
Automatic Choke Setting: 2 Rich
Carburetor #R-4656A
Float Level, Dry: 27/32"
Bowl Vent Clearance: 1/32"
Fast Idle, Bench: .063"
Fast Idle Speed: 1,600 RPM
Choke Unloader Clearance: 5/32"
Vacuum Kick Drill Size:: #39 Drill
Cam Postion Drill Size: #52 Drill
Automatic Choke Setting: 2 Rich
Carburetor #R-6363A
Float Level, Dry: 27/32"
Bowl Vent Clearance: 1/32"
Fast Idle, Bench: .063"
Fast Idle Speed: 2,000 RPM
Choke Unloader Clearance: 9/32"
Automatic Choke Setting: 2 Rich
Carburetor #R-6364A
Float Level, Dry: 27/32"
Bowl Vent Clearance: 1/32"
Fast Idle, Bench: .063"
Fast Idle Speed: 1,900 RPM
Choke Unloader Clearance: 9/32"
Automatic Choke Setting: 2 Rich
HOLLEY MODEL 2210:
Carburetor #R-4373A
Float Level, Dry: .200"
Pump Setting: 9/16"
Bowl Vent Clearance: 5/64"
Fast Idle, Bench: .110"
Fast Idle Speed: 1,700 RPM
Choke Unloader Clearance: 11/64"
Automatic Choke Setting: 2 Rich
Carburetor #R-4665A
Float Level, Dry: .200"
Pump Setting: 9/16"
Bowl Vent Clearance: .015"
Fast Idle, Bench: .110"
Fast Idle Speed: 1,800 RPM
Choke Unloader Clearance: 1/4"
Vacuum Kick Drill Size: #28 Drill
Cam Position Drill Size: #35 Drill
Automatic Choke Setting: 2 Rich
Carburetor #R-4666A
Float Level, Dry: .200"
Pump Setting: 9/16"
Bowl Vent Clearance: .015"
Fast Idle, Bench: .110"
Fast Idle Speed: 1,800 RPM
Choke Unloader Clearance: 1/4"
Vacuum Kick Drill Size: #30 Drill
Cam Position Drill Size: #35 Drill
Automatic Choke Setting: 2 Rich
HOLLEY MODEL 2300:
Carburetor #R-4144A; R-4670
Pump Setting: .015"
Bowl Vent Clearance: .101"
Fast Idle, Bench Setting: .059"
Fast Idle Speed: 1,800 RPM
Choke Unloader: 5/32"
Automatic Choke Setting: 2 Rich
Carburetor #R-4791A
Pump Setting: .015"
Bowl Vent Clearance: .101"
Fast Idle, Bench Setting: .059"
Fast Idle Speed: 2,600 RPM
Choke Unloader: 5/32"
Vacuum Kick Drill Size: #28 Drill
Cam Position Drill Size: #53 Drill
Automatic Choke Setting: Index
Carburetor #R-4792A
Pump Setting: .015"
Bowl Vent Clearance: .101"
Fast Idle, Bench Setting: .059"
Fast Idle Speed: 2,800 RPM
Choke Unloader: 5/32"
Vacuum Kick Drill Size: #39 Drill
Cam Position Drill Size: #53 Drill
Automatic Choke Setting: Index
HOLLEY MODEL 4150 & 4160:
Carburetor #R-4360A
Pump Lever Clearance: .015"
Automatic Choke Setting: 2 Rich
Choke Unloader Clearance: #25 Drill
Bowl Vent Clearance: #73 Drill
Fast Idle, Bench Setting: #53 Drill
Fast Idle Speed: 1,600 RPM
Choke Vacuum Break: #46 Drill
Carburetor #R-4366A
Pump Lever Clearance: .015"
Automatic Choke Setting: 2 Rich
Choke Unloader Clearance: #25 Drill
Bowl Vent Clearance: 5/64"
Fast Idle, Bench Setting: #53 Drill
Fast Idle Speed: 1,600 RPM
Choke Vacuum Break: #46 Drill
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