The only difference between Twisted wedge and Track heat is that the heat has no emissions provisions, and stronger springs. I run the track heats and love them, Trick Flow really stands behind them. They email an answer to any questions I have had. You will probably have to check with them about those heads fitting without flycutting. Know your piston and cam info.
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65 fastback
347 DFI injected, TFS heads, T5, 4.11 9", tc subframe conns, torq thrust D's
A little history lesson using today's tech.
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