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

generates a code of length 87 over Z8 who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+130x^84+136x^86+150x^88+48x^90+38x^92+8x^94+1x^160

The gray image is a code over GF(2) with n=348, k=9 and d=168.
This code was found by Heurico 1.16 in 40.5 seconds.