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

generates a code of length 85 over Z8 who´s minimum homogenous weight is 73.

Homogenous weight enumerator: w(x)=1x^0+26x^73+78x^74+102x^75+179x^76+184x^77+239x^78+352x^79+366x^80+432x^81+574x^82+640x^83+715x^84+700x^85+626x^86+578x^87+513x^88+450x^89+326x^90+270x^91+188x^92+216x^93+133x^94+92x^95+56x^96+36x^97+56x^98+12x^99+20x^100+4x^101+8x^102+2x^103+7x^104+5x^106+1x^108+2x^110+1x^112+1x^116+1x^122

The gray image is a code over GF(2) with n=340, k=13 and d=146.
This code was found by Heurico 1.16 in 7.22 seconds.