M H 50 high altitude

Dieseltech,you have stated to adjust timing.Do you suggest setting at normal spec of 6 degrees BTC instead of the high altitude spec of of Top Dead Center? Thanks for your help
 
Depends on your altitude location, but I'd start with TDC. Best to place it on a PTO dyno to check it under full load from 2000 down to about 1200 engine RPM. Listen closely, if you hear ANY pinging at all it will need backed off more, or use higher octane fuel.
 

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