155 in a certain 914-6
195 in a 912/ 935
La Carrera Classic Started life as a 912, became a SCCA D/P road racer, I got a hold of it and it was slippery slope all the way to a ex Kremer 935 single turbo motor pushing the 935-ish body through the air.
You can imagine the anxiety build as you keep the top speed down a 12 mile long stretch of highway south of the border
Mandaracing (posting above) rescued me from further "slope disease" by purchasing it and racing it himself