LS MARINE ENGINE CONVERSION: GM LS 4.8, 5.3, 6.0, 6.2 Installing the Carburetor

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This week we install the 650 CFM Quick Fuel Carburetor on our LS motor. We had many questions on why we chose to use a carburetor rather than EFI. We did so for a couple reasons. 1), its more cost effective and 2) we don’t have to run an O2 sensor. We’re using a 1″ carb spacer and 1″ extended length mounting studs with our application.