The generator matrix

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

generates a code of length 80 over Z8 who´s minimum homogenous weight is 71.

Homogenous weight enumerator: w(x)=1x^0+76x^71+406x^72+612x^73+767x^74+910x^75+1086x^76+1332x^77+1252x^78+1426x^79+1398x^80+1114x^81+1096x^82+1150x^83+1013x^84+790x^85+668x^86+440x^87+321x^88+254x^89+149x^90+56x^91+25x^92+24x^93+4x^94+6x^95+2x^96+4x^100+2x^101

The gray image is a code over GF(2) with n=320, k=14 and d=142.
This code was found by Heurico 1.16 in 11.5 seconds.