The generator matrix

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

generates a code of length 73 over Z8 who´s minimum homogenous weight is 69.

Homogenous weight enumerator: w(x)=1x^0+144x^69+131x^70+146x^71+127x^72+96x^73+89x^74+90x^75+35x^76+34x^77+46x^78+28x^79+11x^80+6x^81+5x^82+24x^83+1x^84+8x^85+1x^86+1x^96

The gray image is a code over GF(2) with n=292, k=10 and d=138.
This code was found by Heurico 1.16 in 0.158 seconds.