4 Barrel Carburetor fits for Rochester Quadrajet Carburetor Chevy 350 454 327 427 V8 Engines GMC Trucks 1966-1973 big small block 4BBL Carb 1901R 4MV Corvettes 1975-1979 Divorced Choke 650CFM 750CFM

Product description

• Replace: This is brand new 4-BBL carburetor from THUNDERMINGO can directly replace for the Rochester Quadrajet.Replace For 1901-GG 1901R Rochester Quadrajet Carburetor- 4MV. NOTE:This carburetor is suitable for automotive. We do not recommend it for marine purpose.
• Fitment: Vacuum Secondary,divorced choke,Spread bore carburetor, more suitable for dailydrive.Carburetor compatible with 1966-1973 Chevy 327-454c.i, 1975-1979 Corvettes, 1968-1973 Chevy/GMC Trucks Part Number 1901R.compatible with 1966-1973 Chevy Chevrolet GMC Cadillac Fits 327 350 427 454 with Divorced Mechanical Choke.Important: Before purchasing, ensure the carburetor size you need to replace matches the product.
• This Universal Performance carburetors improve throttle response and overall performance throughout the RPM range. Each carb has a distinctly different fuel curve calibrated for a particular application. Do note: Condering the vehicle dispacement range discrepancy, For small block engine applications, minor idle circuit adjustments may be required. You may have to use The included tool and small copper solid pin to block the air channels to fix it. For specific methods, please refer to the details page picture(A guidance to improve idling ).
• Specification:Carburetor For Rochester Quadrajet can range anywhere in between 600 and 750 CFM. Most are rated 750 CFM. The size of jets that pre-installed:Main jet: 185, Idle jet: 120, Auxiliary Venturi: 7.3mm; Venturi(Choke tube):28mm, Air correction jets: 110, Needle valve: 3.3.
• Before purchasing, please check carefully whether the carburetor you need to replace is the same as this product.We recommend that you search for relevant installation videos on the Internet and follow the correct steps strictly. No installation instructions included.Tuning may be needed depending on your setup. For best results, we recommend having a qualified mechanic install and tune the carburetor.

FITMENTS:

Fitment: Carburetor compatible with 1970-1972 V8 Chevy big block Mark IV 6.6L/402

Carburetor compatible with 1967-1973 V8 Chevy small block Gen I 5.7L/350

Carburetor compatible with1966-1970 V8 Chevy big block Mark IV 6.5L/396 Street

Carburetor compatible with 1966-1969 V8 Chevy small block Gen I 5.4L/327 Street

Carburetor compatible with 1966-1969 V8 Chevy big block Mark IV 7.0L/427 Street

Carburetor compatible with 1970-1973 V8 Chevy big block Mark IV 7.4L/454

Carburetor compatible with 1970-1973 V8 Chevy small block Gen I 6.6L/400

Carburetor compatible with GMC 1967-1968 V8 Chevy small block Gen I 5.4L/327

Carburetor compatible with GMC 1968-1969 V8 Chevy big block Mark IV 6.5L/396

Carburetor compatible with GMC 1969-1973 V8

Carburetor compatible with Chevy small block Gen 5.7L/350

Carburetor compatible with GMC 1970-1973 V8 Chevy big block Mark IV 7.4L/454

Carburetor compatible with GMC 1971-1972 V8 Chevy big block Mark IV 6.6L/402.

Replaces Part Numbers: Directly replacement 4-BBL carburetor Replace For 1901-GG Rochester Quadrajet Carburetor- 4MV - 1966-1973, 1975-1979 Corvettes,1968-1973 Chevy/GMC Trucks Part Number 1901R. Interchange with Chevy 7026202 7026203 7026210 7027202 7027203 7027212 7027213 7040007 7040021 7046904 7047207 7047303 7047305 7047306 7047307 7047316 7047319 17054236 17054709 170549.