The generator matrix

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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 69.

Homogenous weight enumerator: w(x)=1x^0+162x^69+223x^70+296x^71+123x^72+278x^73+191x^74+232x^75+61x^76+134x^77+80x^78+66x^79+15x^80+42x^81+52x^82+40x^83+6x^84+20x^85+13x^86+6x^87+1x^88+4x^89+1x^90+1x^92

The gray image is a code over GF(2) with n=296, k=11 and d=138.
This code was found by Heurico 1.16 in 0.386 seconds.