The generator matrix

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

generates a code of length 80 over Z8 who´s minimum homogenous weight is 76.

Homogenous weight enumerator: w(x)=1x^0+153x^76+98x^77+207x^78+48x^79+167x^80+40x^81+109x^82+44x^83+60x^84+14x^85+22x^86+4x^87+21x^88+8x^89+12x^90+12x^92+1x^98+1x^100+1x^102+1x^104

The gray image is a code over GF(2) with n=320, k=10 and d=152.
This code was found by Heurico 1.16 in 0.217 seconds.