The generator matrix

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

generates a code of length 81 over Z2[X]/(X^4) who´s minimum homogenous weight is 79.

Homogenous weight enumerator: w(x)=1x^0+136x^79+140x^80+520x^81+96x^82+88x^83+16x^84+24x^85+1x^96+1x^104+1x^120

The gray image is a linear code over GF(2) with n=648, k=10 and d=316.
This code was found by Heurico 1.16 in 2.47 seconds.