318 Factory Four BBL Intake Manifold

Plymouth 65 said

This discussion brings a question to mind. Regarding the small port 318 head vs large port 360 head. Basically, flow vs velocity in small cubic inch engines. My understanding is that higher velocity will give more low end torque than high flow. Please educate me. Thx 65'

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You are absolutely correct. In fact, about 30 years ago I built a 360 with '71 flat top pistons, 318 cam, 318 heads, 318 manifolds, 318 carb... Torque was off the charts! It went into a '74 Power Wagon, got 23 mpg and could probably tow a mobile home up Vale Pass (in Colorado), if only at 45 mph.