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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+146x^64+16x^65+394x^66+52x^67+552x^68+164x^69+764x^70+304x^71+890x^72+480x^73+936x^74+516x^75+755x^76+292x^77+680x^78+136x^79+377x^80+72x^81+324x^82+16x^83+174x^84+90x^86+41x^88+10x^90+7x^92+2x^94+1x^104

The gray image is a code over GF(2) with n=296, k=13 and d=128.
This code was found by Heurico 1.16 in 5.14 seconds.