The generator matrix

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

generates a code of length 84 over Z9 who´s minimum homogenous weight is 158.

Homogenous weight enumerator: w(x)=1x^0+402x^158+282x^159+774x^161+384x^162+810x^164+396x^165+654x^167+318x^168+432x^170+214x^171+414x^173+258x^174+288x^176+144x^177+270x^179+88x^180+204x^182+66x^183+96x^185+30x^186+18x^188+6x^189+12x^191

The gray image is a code over GF(3) with n=252, k=8 and d=158.
This code was found by Heurico 1.16 in 21.8 seconds.