GMPP Carb Manifold

[BlackRocket]

Hey guys, I just got a GM Performance Parts Naturally Aspirated manifold and discovered that although it does have the distributor hole, there are absolutely no holes for the coolant ports in the heads.

Can someone explain to me the reverse flow of the coolant and how I would go about installing this manifold and not have any overheating issues.

A link to the manifold I purchased:

http://store.summitracing.com/partdetail.asp?part=NAL%2D24502592&autoview=sku

Thanks! :D