The generator matrix

 1  0  0  1  1  1  2  6  4  6  1  1  1  1  1  2  1  1  4  4  1  2  1  1  1  1  6  0  1  1  1  1  1  2  0  0  1  4  1  6  1  2  6  1  1  1  0  4  2  1  1  1  0  1  2  1  1  1  1  1  1  2  2  1  6  1  6  1  1  1  1  1  1  0  1  2  1  6  1  6
 0  1  0  0  1  1  1  2  1  1  3  7  2  2  2  0  6  5  1  2  5  1  4  5  3  0  1  1  7  3  4  7  0  1  2  1  4  1  1  1  1  6  1  6  3  4  1  1  1  3  2  4  4  6  0  5  6  6  6  7  7  2  4  4  4  3  6  2  6  3  1  5  1  0  0  4  2  4  4  1
 0  0  1  1  4  5  1  1  1  0  4  3  5  0  7  1  6  1  0  1  2  3  3  7  6  2  0  7  6  1  5  4  0  6  1  1  7  6  4  5  7  1  6  5  5  2  3  6  3  3  5  0  1  7  1  2  4  2  1  7  1  2  1  0  1  5  1  3  3  7  1  7  3  1  6  1  3  1  6  7
 0  0  0  4  0  4  4  4  0  4  4  0  0  4  0  0  4  0  4  4  4  0  4  4  0  0  0  4  4  0  0  0  4  4  0  4  0  4  4  0  0  0  0  0  4  4  0  0  4  4  4  0  4  4  4  0  0  0  4  4  0  4  4  4  0  0  0  0  0  0  4  0  4  4  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+125x^76+160x^77+145x^78+118x^79+138x^80+80x^81+63x^82+20x^83+31x^84+28x^85+36x^86+30x^87+12x^88+12x^89+8x^90+12x^92+2x^94+1x^96+1x^98+1x^102

The gray image is a code over GF(2) with n=320, k=10 and d=152.
This code was found by Heurico 1.11 in 0.584 seconds.