Clifford's big bucks.

I'm curious if anyone knows how Cliffords replacement intake manifold works. It says it has a "water heated Passage" I guessing that it's purpose is to replace the exhaust manifolds heater box, so that you can use their headers. But my real question is, does the stock manifold have any kind of inlet for coolant or do you have to drill a hole in your block to let the coolant into the clifford manifold?

I think most folks just route a heater hose over to the manifold.

VM