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By comparison, a "square bore" carburetor has primary and secondary venturis of similar size. Most Quadrajets were capable of 750 cu ft (21,000 L)/min ( cfm ) maximum, but some rare Buick and Pontiac models [ 1 ] were capable of 800 cu ft (23,000 L)/min for use on high performance engines, and most 1984-1987 pickup trucks were also equipped ...
In 1957 Chevrolet introduced their first fuel-injected engine, [12] the Rochester Ramjet high-performance option on Corvette and passenger cars at $484. [13] In 1956 Oldsmobile were also experimenting with Rochester fuel injection, at the GM desert proving grounds near Phoenix, but offered the Rochester triple-carburetor J2 option for 1957. [14]
Rochester Ramjet system installed on a 1957 Chevrolet 210. The Rochester Ramjet is an automotive fuel injection system developed by the Rochester Products Division of General Motors and first offered as a high-performance option on the Corvette and GM passenger cars in 1957.
The first iteration of the 305, the LG3 was introduced in 1976. This variant used a Rochester 2GC carburetor from 1976 to 1978. In 1979, the more fuel-efficient Rochester Dual-Jet two-barrel carburetor replaced the older 2GC. This change also resulted in a drop in power to 130 hp (97 kW) and 125 hp (93 kW) for California emissions cars.
Dual Carter Carburetor 500 cu ft/min (14 m 3 /min) #3433S (front) and #3435S (rear) carburetors with manual chokes and mechanical linkage. Factory heavy-duty high-pressure oil pump and eight-quart sump, four-bolt main bearing caps with Moraine aluminum bearings, and #1110976 dual-point distributor without vacuum advance.
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Three individual Rochester 2G carburetors were arranged inline on the intake manifold, the center one operating normally and the outer two acting as secondaries, or "dumpers", for full throttle performance. Tri-Power often included a hood bulge to accommodate the carburetor set-up and identifying badging on the vehicle's exterior.
A carburetor (also spelled carburettor or carburetter) [1] [2] [3] is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. [4] The primary method of adding fuel to the intake air is through the Venturi effect or Bernoulli's principle in the main metering circuit, though various other ...