The generator matrix

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

generates a code of length 73 over Z8 who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+185x^68+172x^69+312x^70+192x^71+236x^72+164x^73+168x^74+104x^75+173x^76+44x^77+96x^78+52x^79+53x^80+16x^81+22x^82+20x^83+18x^84+4x^85+8x^86+5x^88+2x^90+1x^96

The gray image is a code over GF(2) with n=292, k=11 and d=136.
This code was found by Heurico 1.11 in 0.26 seconds.