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  X  X  X  X  X  1  X  1  1  1  1  1  1  X  X  X  X  X  X  X  X  X  X  1  1  1  1 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2 X^2
 0 X^3+X^2  0 X^2  0  0 X^2 X^3+X^2 X^3 X^3 X^3+X^2 X^2 X^3 X^3 X^3+X^2 X^2  0 X^3 X^2 X^3+X^2  0 X^3 X^2 X^3+X^2 X^3 X^3 X^2 X^3+X^2 X^3+X^2 X^2  0  0 X^3+X^2 X^2 X^3  0 X^3+X^2 X^2 X^2 X^3+X^2 X^3  0 X^3+X^2 X^2  0  0 X^3 X^3  0 X^3 X^2 X^3+X^2  0 X^2 X^3+X^2 X^3 X^3+X^2 X^3+X^2  0 X^3+X^2 X^2  0 X^3 X^3 X^3 X^2 X^2
 0  0 X^3+X^2 X^2 X^3 X^2 X^3+X^2 X^3 X^3 X^2 X^3+X^2 X^3  0 X^3+X^2 X^2  0  0 X^2 X^2  0 X^3 X^3+X^2 X^3+X^2 X^3 X^3 X^2 X^2 X^2  0 X^3 X^3+X^2 X^3+X^2 X^3+X^2 X^3  0 X^2 X^2  0 X^3+X^2 X^3+X^2 X^3+X^2 X^2 X^3  0  0 X^3 X^3  0  0 X^2 X^2  0 X^3+X^2 X^3+X^2 X^3 X^2 X^3+X^2  0 X^2 X^2 X^3 X^3 X^3  0 X^3+X^2 X^2  0

generates a code of length 67 over Z2[X]/(X^4) who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+72x^66+128x^67+38x^68+12x^70+1x^72+4x^82

The gray image is a linear code over GF(2) with n=536, k=8 and d=264.
This code was found by Heurico 1.16 in 3.39 seconds.