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  2  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
 0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  4  0  4  0  4  0  4  0  4  0  4  4  0  4  4  4  4  4  0  4  4  4  0  4  4  4  4  4  0  4  0  4  4  4  0  4  0  4  4  0  4  4  0  4  4  4  0  0  0  4  0  0  0  0  4  0  4  0  4  0
 0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  4  0  4  0  4  0  4  0  4  0  4  0  4  4  0  4  4  4  4  4  0  4  4  4  0  4  4  4  4  4  0  4  0  4  4  4  4  4  0  4  4  0  0  4  4  4  0  0  0  0  4  0  0  0  4  0  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  4  4  0  0  4  4  4  4  0  0  0  0  0  0  0  0  0  4  4  0  0  4  4  0  4  4  4  4  0  0  4  0  4  0  4  4  4  4  0  0  0  0  4  4  0  0  0  0  0  0  4  4  4  4  0  0  0  4  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  4  4  4  0  4  0  4  4  4  0  4  4  4  0  4  4  0  4  4  4  4  4  0  4  4  4  4  4  4  4  0  0  0  0  4  0  0  0  4  4  4  0  0  0  4  4  4  4  0
 0  0  0  0  0  4  0  4  4  4  0  0  0  0  4  4  4  4  0  0  0  0  0  0  4  4  4  4  4  4  4  0  0  0  4  0  4  4  4  4  0  0  0  4  0  0  4  0  4  4  0  0  4  0  4  4  4  4  4  4  4  4  0  0  0  0  0  4  0  4  0  0  0  0  0  4  4  0  0
 0  0  0  0  0  0  4  4  0  4  4  0  4  4  4  0  0  4  0  0  4  4  4  4  4  4  0  0  0  0  0  4  4  0  0  4  4  0  4  4  4  4  0  0  0  4  0  0  4  0  4  0  4  0  4  4  0  0  4  0  4  4  4  0  0  0  4  4  0  0  0  0  0  0  4  4  4  4  0

generates a code of length 79 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+17x^74+28x^76+32x^77+20x^78+320x^79+21x^80+32x^81+22x^82+12x^84+4x^86+2x^88+1x^154

The gray image is a code over GF(2) with n=316, k=9 and d=148.
This code was found by Heurico 1.16 in 0.188 seconds.