The generator matrix

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

generates a code of length 66 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+27x^64+128x^65+28x^66+16x^67+4x^68+40x^69+2x^70+8x^73+2x^86

The gray image is a code over GF(2) with n=264, k=8 and d=128.
This code was found by Heurico 1.16 in 0.0815 seconds.