Replace Part Number: 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.
Fitment: Vacuum Secondary,Manual choke,Spread bore carburetor, more suitable for daily drive.Carburetor Fits For 1901R Rochester Quadrajet 4MV，Directly replacement 4-BBL carburetor compatible for 1966-1973 Chevy 327-454c.i, 1975-1979 Corvettes, 1968-1973 Chevy/GMC Trucks Part Number 1901R.For 1966-1973 Chevy Chevrolet GMC Cadillac Fits 327 350 427 454 with Divorced Remote Mechanical Choke
CFM:Carburetor For Rochester Quadrajet can range anywhere in between 600 and 800 CFM. Most are rated 750 CFM.Specification the size of jets that pre-installed:Main jet: 185mm, Idle jet: 120mm, Auxiliary Venturi: 7.3mm; Venturi(Choke tube):28mm, Air correction jets: 110mm, Needle valve: 3.3mm