The generator matrix

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

generates a code of length 68 over Z8 who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+256x^66+88x^68+112x^70+3x^72+48x^74+3x^80+1x^88

The gray image is a code over GF(2) with n=272, k=9 and d=132.
This code was found by Heurico 1.16 in 92.2 seconds.