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Rochester Carburetor Trick!
If your Rochester Quadrajet or Dualjet Carburetor is Hesitating try this Trick!





1971 Chevy vacuum lines
This shows you where the vacuum and fuel lines go from point A. to point B. I did it because noone else has on youtube. I hope this helps you .





Vacuum Advance readings
M4ME Quadrajet , Holley 300-38 intake , summit racing distributor





How to adjust carburetor mixture screws
Here's how to find and adjust the mixture screws on your carburetor. If you are doing an initial setting after rebuilding, turn each screw out 2-1/2 turns from lightly seated as a baseline to get the engine started. Note that metering-block style carbs such as Holley and Demon more often have one or 2 mixture screws in each metering block depending on the number of venturi. Also those may not be located at the bottom of the carb as in factory carburetors.




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