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

generates a code of length 82 over Z8 who´s minimum homogenous weight is 78.

Homogenous weight enumerator: w(x)=1x^0+33x^78+45x^80+96x^81+256x^82+32x^85+30x^86+18x^88+1x^158

The gray image is a code over GF(2) with n=328, k=9 and d=156.
This code was found by Heurico 1.16 in 0.579 seconds.