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

generates a code of length 66 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+12x^70+3x^72

The gray image is a code over GF(2) with n=264, k=4 and d=140.
This code was found by Heurico 1.16 in 0.0892 seconds.