The generator matrix

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

generates a code of length 90 over Z8 who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+342x^84+108x^85+720x^86+92x^87+724x^88+100x^89+546x^90+64x^91+408x^92+44x^93+328x^94+44x^95+219x^96+28x^97+138x^98+24x^99+68x^100+8x^101+36x^102+28x^104+24x^106+2x^108

The gray image is a code over GF(2) with n=360, k=12 and d=168.
This code was found by Heurico 1.16 in 1.34 seconds.