The generator matrix

 1  0  0  1  1  1  2  6  4  6  1  1  1  1  1  2  1  1  4  4  1  2  1  1  1  1  6  0  1  1  1  1  1  2  0  0  1  4  1  6  1  2  6  1  1  1  0  4  2  1  1  1  0  1  2  1  1  1  1  1  1  2  2  1  6  1  6  1  1  1  4  1  1  1  1  1  1
 0  1  0  0  1  1  1  2  1  1  3  7  2  2  2  0  6  5  1  2  5  1  4  5  3  0  1  1  7  3  4  7  0  1  2  1  4  1  1  1  1  6  1  3  6  4  1  1  1  3  2  4  4  6  0  5  6  6  6  7  7  2  4  4  4  3  6  2  1  7  1  4  2  5  3  4  3
 0  0  1  1  4  5  1  1  1  0  4  3  5  0  7  1  6  1  0  1  2  3  3  7  6  2  0  7  6  1  5  4  0  6  1  1  7  6  4  5  7  1  6  5  5  2  3  6  3  3  5  0  1  7  1  2  4  2  1  7  1  2  1  0  1  5  1  3  1  2  2  1  3  7  7  3  3
 0  0  0  4  0  4  4  4  0  4  4  0  0  4  0  0  4  0  4  4  4  0  4  4  0  0  0  4  4  0  0  0  4  4  0  4  0  4  4  0  0  0  0  4  0  4  0  0  4  4  4  0  4  4  4  0  0  0  4  4  0  4  4  4  0  0  0  0  4  4  4  0  4  0  0  0  0

generates a code of length 77 over Z8 who´s minimum homogenous weight is 73.

Homogenous weight enumerator: w(x)=1x^0+104x^73+176x^74+170x^75+116x^76+134x^77+48x^78+62x^79+33x^80+50x^81+9x^82+32x^83+48x^84+12x^85+6x^86+4x^87+8x^88+4x^89+1x^90+4x^91+2x^96

The gray image is a code over GF(2) with n=308, k=10 and d=146.
This code was found by Heurico 1.11 in 0.482 seconds.