SPEEDWOW Carburetor CARB 4 Barrel For Chevy 1966-1973 327 350 427 454 Engines Trucks and Cars, Replace 1975-1979 Corvettes 1901R 750 CFM 4BBL 4MV 1901-GG - Manual Divorced Choke Carb

➤【Applicable Vehicle】： 

■1970-1972 V8 Chevy big block Mark IV 6.6L/402

■1967-1973 V8 Chevy small block Gen I 5.7L/350

■1966-1970 V8 Chevy big block Mark IV 6.5L/396 Street

■1966-1969 V8 Chevy small block Gen I 5.4L/327 Street

■1966-1969 V8 Chevy big block Mark IV 7.0L/427 Street

■1970-1973 V8 Chevy big block Mark IV 7.4L/454

■1970-1973 V8 Chevy small block Gen I 6.6L/400

■GMC 1967-1968 V8 Chevy small block Gen I 5.4L/327

■GMC 1968-1969 V8 Chevy big block Mark IV 6.5L/396

■GMC 1969-1973 V8

■Chevy small block Gen 5.7L/350

■GMC 1970-1973 V8 Chevy big block Mark IV 7.4L/454

■GMC 1971-1972 V8 Chevy big block Mark IV 6.6L/402

➤【APPLICABLE OEM PART NUMBER】： 

Powerful power and fuel efficiency

★Original factory OE

•1901R

•1901-GG

•305

➤Package Including:

1x Carburetor,

1 x Flange Gaskets,

1x Air filter gaskets,

1x Tool for Pushing Plug,

4x Plugs, 8x jets. As shown in the picture.

➤CARBURETOR ASSEMBLY:

■1. Assemble the upper body and lower body of the carburetor.

Care should be taken to install the gasket when operating.

■2. Install the idle speed fluctuation compensator.

Care should be taken to install the gasket and.

Shaped ring to prevent air leakage and loss of compensation.

■3. Install the idle speed shut-off valve.

★First, put the needle valve and spring into the carburetor upper body hole, and set a good seal on the idle speed shut-off valve.

★Then install it to the carburetor and tighten it.

■4. Install the carburetor small throat and each quantity hole.

■5. Install the float and adjust the oil level of the float chamber.

■6. Connect the upper and lower body of the carburetor, install the damper puller and vacuum hose, connect the fast idle speed puller and accelerator pump piston, etc.

■7. Adjust the throttle opening, fast idle mechanism and engine idle speed.

■8. Adjustment of the operating mechanism, throttle manipulation mechanism, so that the throttle lever reaches the fully open throttle position.

⚠️⚠️⚠️➤Notice:

■1. Impurity in fuel may cause clogging in the carburetor, please use the clean fuel to ensure the carb work normally, please clean the automobile oil circuit and air filter before you install the carburetor

Please compare carefully the pictures provided to your part before buying.

■2. Please confirm your old part number matches up with one of the part numbers above

■3. Professional installation is highly recommended (No Instruction Included)