The generator matrix

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

generates a code of length 80 over Z8 who´s minimum homogenous weight is 75.

Homogenous weight enumerator: w(x)=1x^0+46x^75+94x^76+144x^77+122x^78+116x^79+110x^80+100x^81+104x^82+32x^83+38x^84+24x^85+26x^86+26x^87+11x^88+20x^89+4x^90+2x^103+1x^104+2x^107+1x^112

The gray image is a code over GF(2) with n=320, k=10 and d=150.
This code was found by Heurico 1.16 in 0.277 seconds.