@the5 Turns out it is the GT4 piece, made by Sachs.
I sourced mine through Capaldi. They did the prove out for GT350/FP350S although FP never ended up adopting it. Call Leo or Craig.
You’ll need to install a stop for the clutch pedal to avoid over throwing the clutch.
Car was down on power for last day at Sebring in December. Did a compression and leakdown test, #8 Cylinder is bad. Engine has done 60 hours. FP350S recommendation is rebuild at 40 hours.
Dropped to powertrain today:
I've used Harry's laptimer, AIM MXLII with Smartycam, AIM Solo with Smartycam and Racelogic VBox. They all have strengths/weaknesses, but in terms of ease of use and video analysis VBox wins, albeit at a price.
My recommendation would be to talk to Peter Krause. He knows all these systems...
Thanks to you and the moderators for making this the best Mustang forum for track rats. Period.
As for the GT500, just go order one. The GT350 surprised a lot of import buyers at higher price points, the GT500 is going to demoralize them :). Just read (between the lines) in Randy’s review.