The generator matrix

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

generates a code of length 91 over Z9 who´s minimum homogenous weight is 174.

Homogenous weight enumerator: w(x)=1x^0+330x^174+468x^177+404x^180+292x^183+308x^186+82x^189+144x^192+100x^195+38x^198+4x^201+4x^204+6x^207+2x^210+2x^213+2x^228

The gray image is a code over GF(3) with n=273, k=7 and d=174.
This code was found by Heurico 1.16 in 9.52 seconds.