WCCH/Edelbrock 215 LS1 Flow Data @ 28" Water:
Valve sizes: Intake = 2.055" Exhaust = 1.60"
Intake runner volume = 212cc
Exhaust runner volume = 82cc
Combustion chamber volume = 66cc
Test bore = 4.030"
Intake port tested with radius flow plate
Exhaust tested with stub pipe
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