The generator matrix

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

generates a code of length 43 over Z8 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+76x^42+27x^44+20x^46+3x^48+1x^60

The gray image is a code over GF(2) with n=172, k=7 and d=84.
This code was found by Heurico 1.16 in 0.0252 seconds.