[302 LX Eric]

Dark:

My TFS TW heads manual says the following:

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7/16" Head Bolts: Torque to 35 ft.-lbs., 50 ft.-lbs., and 70 ft.-lbs., then tighten only the long bolts an additional 10 ft.-lbs.

Retorquing shouldn't be necessary after initial break-in, but can be done if desired.
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Since they're both aluminum heads, I would imagine it would be the same for either Canfield's or TW's.

Hope this helps,
E