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

generates a code of length 68 over Z8 who´s minimum homogenous weight is 65.

Homogenous weight enumerator: w(x)=1x^0+20x^65+91x^66+8x^67+27x^68+16x^69+65x^70+8x^71+3x^72+8x^73+1x^74+1x^76+3x^78+4x^81

The gray image is a code over GF(2) with n=272, k=8 and d=130.
This code was found by Heurico 1.16 in 25.5 seconds.