The generator matrix

 1  0  0  1  1  1  1  1  1  6  1  1  1  0  1  1  6  1  1  3  1  1  3  1  6  1  1  1  1  0  1  1  1  1  1  6  6  1  1  3  0  1  0  1  1  6  1  1  1  1  1  0  1  1  1  1  3  6  3  1  6  1  3  3  1  1  1  0  3  1  1  1  1  1  6  1  1  6  6  1  0  1  1  1  1  1
 0  1  0  6  1  7  8  0  2  1  6  7  5  1  1  3  0  4  6  1  1  2  1  4  1  8  2  3  7  1  8  1  5  0  3  1  3  8  0  1  6  6  1  1  2  1  5  4  1  3  5  1  7  6  3  7  1  1  1  4  1  0  6  3  3  6  4  1  1  0  7  4  0  1  1  0  4  1  6  6  1  7  2  4  6  3
 0  0  1  7  1  6  2  8  6  7  4  2  1  5  4  3  1  0  5  3  8  3  7  7  2  1  5  5  7  8  4  6  3  3  7  4  1  8  2  0  1  0  3  0  2  8  7  2  5  1  0  4  5  1  4  3  5  3  2  8  0  7  1  1  6  6  3  6  6  1  8  5  4  2  6  6  6  5  1  8  2  1  0  2  7  7

generates a code of length 86 over Z9 who´s minimum homogenous weight is 168.

Homogenous weight enumerator: w(x)=1x^0+96x^168+54x^169+90x^170+210x^171+72x^172+36x^173+36x^174+18x^175+36x^176+30x^177+18x^178+6x^180+20x^189+6x^198

The gray image is a code over GF(3) with n=258, k=6 and d=168.
This code was found by Heurico 1.16 in 0.0852 seconds.