Pump fuel. There was 3 electric fuel pumps and one failed, that´s why it went lean. I´ve tried to search cam specs, but nobody remembers exactly and no papers have been found, not from owner, cam designer or cam grinder It was something like 290 degrees, but not for sure. 11,55mm lift for sure. Redline with 225 was ~6000, 198 revd happily much higher with otherwise same setup. Triple side draft carbs and header, pics are here: http://koti.mbnet.fi/trc/technic.htm Full potential of the engine was never seen at strip, becouse of several difficulties with torque converter, transmission and rear end.