If you select a 351W intake manifold I would select Kaase's P-38 heads. All the guys I know avoid the World Products block and prefer either Dart or Ford. You'll find off the shelf headers for Cleveland heads and 9.2 blocks or SBF/Windsor heads and 9.5 blocks. I'm not sure if 180 headers for the Windsor are custom manufactured or available off-the-shelf, if custom they can obviously be made for either deck height.
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