The 6210-3 and 8679 carburetors have been designated and calibrated as direct “bolt on” replacement carburetors for 1965-1970 Chevrolet passenger vehicles (only) originally equipped with a Rochester Quadra-Jet carburetor. (Specific recommendations and descriptions for each carburetor list number are shown in the accompanying chart on the last page of the instruction sheet.)
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The intake manifold assembly is a two-piece design. The upper portion is made from a composite material and the lower portion
is cast-aluminum. The throttle body attaches to the upper manifold. The lower manifold has an Exhaust Gas Recirculation (EGR)
port cast into the manifold for mixture of exhaust gases with the fuel and air mixture. The EGR valve bolts into the lower intake
manifold.
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Installation Procedure:
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove air cleaner
3. Using 1/2” socket, remove (3) 5/16’ bolts.
* Please Note: Some units have bolts that are drilled and tapped for air cleaner mounting studs.
4. It is not necessary to remove the fuel lines.
5. Remove fuel line bracket from transmission. (Located on drivers side of bell housing)
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Installation Instructions Procedures:
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove air intake assembly.
3. Remove throttle body intake box and save bolts.
4. Remove (3) bolts from throttle body.
5. Remove bolts from throttle linkage bracket and save.
6. Install power plate using (3) 6mm x 60 bolts and (3) 6mm flat washers. (Ref. “A”)
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Installation Procedure for this body spacer:
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove throttle body air intake assembly.
3. Remove (2) nuts from the throttle body and (2) studs from manifold. (Ref. “C”)
4. Remove gasket and clean surfaces.
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Included with your Poweraid Spacer is a sticker with a California Air Resources Board (C.A.R.B.) Executive Order (EO) number. This sticker must be placed in plain view inside of the engine compartment. Failure to do so may prevent you from passing a smog inspection.
Installation Procedure:
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove air cleaner assembly.
3. Using 1/2” socket, remove (4) 5/16” bolts attaching throttle body to manifold.
4. Lift throttle body.
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The installation instructions step:
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove air cleaner housing from throttle body.
3. Remove 5/16” bolt (Ref. “C”) & stud (Ref. “D”) from throttle body.
4. Remove (2) 6mm bolts from throttle linkage bracket and save.
5. Move the throttle body forward then remove the gasket and clean the surfaces.
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Installation Instructions. Read Me! Rv. 01/04
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove throttle body air intake system.
3. Remove (3) nuts & studs from the throttle body & manifold. (Ref. “C”)
4. Remove support bracket from engine block to throttle body. (Ref. “D”)
* Please Note: When removing support bracket bolt at engine block, loosen bolt enough to remove bracket. DO NOT REMOVE BOLT.
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REMOVAL OF OLD THROTTLE BODY
1. Disconnect the negative (-) battery terminal.
2. The air inlet tube connecting the air cleaner to the throttle body must be removed. Loosen both of the clamps on the air inlet tube and carefully remove it from the vehicle.
3. Disconnect the throttle position sensor and the idle speed control solenoid connectors from the throttle body. Also disconnect the EGR position sensor connector from the EGR valve.
4. Disconnect the EGR vacuum line from the EGR valve. Disconnect the throttle linkage. Loosen the two hose clamps on the throttle body coolant hoses on the EGR spacer. Remove the hoses being aware that some coolant may drain from the hoses.
5. Remove the four nuts that hold the throttle body to the manifold. Slide the stock throttle body and EGR spacer off of the four studs.
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