The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1
 0  2  0  0  0  2  6  6  0  0  0  0  2  6  6  2  0  0  0  0  2  6  6  2  0  2  0  6  0  4  2  6  4  4  2  4  6  4  2  6  4  4  2  4  6  4  2  6  4  4  6  4  4  2  6  6  4  4  4  0  6  2  2  2  0  4  0  0  2  2  2  6  0  0  2  2  0  2  4  6  4
 0  0  2  0  2  2  2  0  4  6  4  6  6  4  6  4  0  2  4  6  2  4  2  4  4  6  0  6  6  2  0  0  6  2  0  4  4  0  2  6  2  6  2  4  4  0  4  2  6  4  2  4  2  6  0  0  0  0  6  2  6  6  4  0  0  0  2  6  2  2  0  4  0  2  6  6  4  4  4  4  2
 0  0  0  2  2  0  2  2  4  6  6  4  4  6  6  4  4  6  2  0  4  2  6  0  0  0  6  2  2  0  2  0  2  4  6  0  4  2  2  0  2  4  6  6  0  4  6  4  0  4  0  2  6  2  6  4  0  6  6  4  4  6  2  4  0  2  2  0  0  6  2  4  4  6  4  2  2  2  2  6  6

generates a code of length 81 over Z8 who´s minimum homogenous weight is 77.

Homogenous weight enumerator: w(x)=1x^0+16x^77+40x^78+32x^79+86x^80+160x^81+104x^82+32x^83+8x^84+16x^85+16x^86+1x^160

The gray image is a code over GF(2) with n=324, k=9 and d=154.
This code was found by Heurico 1.16 in 0.193 seconds.