The generator matrix

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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+122x^68+138x^69+237x^70+144x^71+216x^72+128x^73+190x^74+122x^75+201x^76+116x^77+162x^78+74x^79+104x^80+28x^81+23x^82+6x^83+5x^84+2x^85+8x^86+6x^87+7x^88+4x^89+2x^90+1x^98+1x^102

The gray image is a code over GF(2) with n=296, k=11 and d=136.
This code was found by Heurico 1.16 in 0.365 seconds.