The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+286x^58+492x^59+725x^60+924x^61+1030x^62+1264x^63+1404x^64+1492x^65+1424x^66+1392x^67+1321x^68+1280x^69+1110x^70+840x^71+505x^72+356x^73+244x^74+132x^75+94x^76+12x^77+28x^78+8x^79+14x^80+6x^82

The gray image is a code over GF(2) with n=264, k=14 and d=116.
This code was found by Heurico 1.16 in 9.12 seconds.