Found spec sheet for your injection pump 3340F000, has 3 possible fuel setting codes, 49/900/3/2310, 52/900/3/2310, or 57/900/3/2310. At your altitude I hope code on your tag is 49 or 52, I know 57 will probably have some smoke. Here where I am in IN about 900 ft some MF tractors are OK with 63...