4 Barrel Carburetor for Rochester Quadrajet Carburetor 4MV 1904R 1906R 4BBL Carb Fits for Chevy Chevrolet 305 350 c.i Engine V8 GM Cadillac 1980-1989 Vacuum Secondary 750 CFM New with Electric Choke

Features

• Replace : This is brand new 4-BBL carburetor from THUNDERMINGO can directly Replace For 1904R 1906R Rochester Quadrajet 4MV electric choke 4-BBL carburetor. Not for use with computer controlled vehicles.We do not recommend it for marine purpose.Note: Our carburetor version does not include the electrical plugs and AC throttle kick-up assembly.
• Fitment: Carburetor Fits For1980 Chevy Cars, Fits For 1981-1986 Chevy/GMC Trucks,Replace for #1904R or #1906R.Carburetor Fits For 1980-1989 Chevy 305-350c.i. engines with Chevy bowl entrance and linkage style, electric choke, 4-BBL, compatible with EGR. Not for use with computer controlled vehicles.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, some vehicles may be too rich with black smoke from the muffler, You may have to use The included tool and small copper solid pin to block the air channels to fix it, If you are confused, Message us before any adjustment.
• Specification: 4-BBL carburetor from THUNDERMINGO For Rochester Quadrajet can range anywhere in between 600 and 750CFM. Most are rated 750 CFM.NOTE:This carburetor is suitable for automotive.The size of jets that pre-installed:Main jet: 190, Idle jet: 120, Auxiliary Venturi: 7mm; Venturi(Choke tube):31.7mm, Air correction jets: 190, Needle valve: 3.3.
• Customer Service:We will try our best to meet your expectations.If you need assistance or have any problems,feel free to contact us.Before purchase, 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. Carburetor is fully tested and ready to install. Tuning may be needed depending on your setup. For best results, we recommend having a qualified mechanic install and tune the carburetor.