The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+160x^69+128x^70+196x^71+22x^72+168x^73+62x^74+96x^75+68x^77+14x^78+52x^79+5x^80+16x^81+6x^82+8x^83+4x^85+10x^86+4x^88+4x^90

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 26.7 seconds.