Two 1969 914-8 cars were built.
1) chassis 914111 engine 908 3.0 litre, 300bhp, red, for F. Piech. Officially for track development though some use on road presumably to develop:
2) chassis 914006 engine 908 3.0 litre 260hp, silver. for Ferry Porsche 60th birthday.
Both cars fuel injected, based on 908/3 race car prototype engine. 155mph top speed and 0-60 around 6 secs.
10,000 rpm tachometer...
Butchery!
Source; Porsche 914, 914-6 by Brian Long. Veloce Publishing 1997
Dave