The generator matrix

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

generates a code of length 71 over Z8 who´s minimum homogenous weight is 65.

Homogenous weight enumerator: w(x)=1x^0+158x^65+292x^66+400x^67+455x^68+440x^69+429x^70+350x^71+280x^72+216x^73+265x^74+200x^75+152x^76+144x^77+71x^78+70x^79+71x^80+42x^81+31x^82+20x^83+1x^84+8x^85

The gray image is a code over GF(2) with n=284, k=12 and d=130.
This code was found by Heurico 1.16 in 0.66 seconds.