The generator matrix

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

generates a code of length 40 over Z8 who´s minimum homogenous weight is 38.

Homogenous weight enumerator: w(x)=1x^0+228x^38+155x^40+72x^42+52x^46+3x^48+1x^56

The gray image is a code over GF(2) with n=160, k=9 and d=76.
This code was found by Heurico 1.16 in 0.505 seconds.