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

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

Homogenous weight enumerator: w(x)=1x^0+166x^58+16x^59+299x^60+72x^61+377x^62+188x^63+529x^64+232x^65+540x^66+252x^67+383x^68+184x^69+346x^70+52x^71+176x^72+24x^73+126x^74+4x^75+59x^76+37x^78+22x^80+8x^82+2x^84+1x^100

The gray image is a code over GF(2) with n=264, k=12 and d=116.
This code was found by Heurico 1.16 in 16 seconds.