The January 2007 Fastrack is on the SCCA web site. On page 22, within Tech Bulletins, is the following (effective 1/1/07):

FC
1. Section 9.1.1.B.1.d.10, the required SCCA Club map has been changed for the Zetec powered FC cars. This updated map, available from the SCCA website: http://www.scca.com/Club/Index.asp?reference=techforms, is required effective 1/1/07.
2. Section 9.1.1.B.1.d.12, change the third sentence to read as follows: The restrictor internal diameter is 1.295 inches. This value cannot be exceeded in any measurement of the diameter.
3. Section 9.1.1.B.1.k, change the third line to read as follows: Zetec Engine - 1220 lbs.

Dave