The generator matrix

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

generates a code of length 66 over Z8 who´s minimum homogenous weight is 58.

Homogenous weight enumerator: w(x)=1x^0+205x^58+116x^59+455x^60+284x^61+672x^62+484x^63+860x^64+668x^65+906x^66+620x^67+833x^68+500x^69+561x^70+300x^71+315x^72+84x^73+171x^74+16x^75+68x^76+35x^78+26x^80+9x^82+2x^88+1x^90

The gray image is a code over GF(2) with n=264, k=13 and d=116.
This code was found by Heurico 1.16 in 88.2 seconds.