The generator matrix

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

generates a code of length 70 over Z8 who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+86x^63+271x^64+188x^65+380x^66+280x^67+417x^68+286x^69+483x^70+230x^71+427x^72+202x^73+345x^74+134x^75+132x^76+66x^77+57x^78+30x^79+23x^80+20x^81+13x^82+6x^83+6x^84+4x^85+2x^87+2x^88+2x^89+2x^90+1x^92

The gray image is a code over GF(2) with n=280, k=12 and d=126.
This code was found by Heurico 1.16 in 1.74 seconds.