You need to [1] get yourself an NHRA rule book, [2] read the True Street rules on the Fun Ford site (
http://www.funford.com ), and [3] read the SFI rules quick chart also location in the rules section on the Fun Ford site.
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Dan McClain, Editor
The Mustang Works Online
1991 Mustang GT - 10.90 @ 122 Mph
Built, Blown, and Fast as Hell!