The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  0  1  1  1  0  1  1  1  5  1  1  1  1  1  1  5  1  1  1  1  5  1  1  1  1  1  1  1  1  1  1  1  1  1  1  5  1  0  1  1  1 20  1  1  1 20  1 20  1  1  1  5  1  1  1  1
 0  1  1  7 14 18  0 16  7 14 18  1  0 14 18  1 16  7 16  1 19  5 12  9  5 12  1 11  5 12  9  1 17  5 11 21  1 15 12  1  7  2  9 10 19  4  1 15  1  2 23  9  1 15  0 16  1  3  1 23 19 16  1  7 14  6 18
 0  0 15  0 15 10  0 20 10 20  5 15 10  0 15 15 15  0 10  5  0 10 15 10  5  5  0 20 20 15  5 20 20  5 15  5  5 10 10  5 15 20 10  5 10  0 10  0  0 20 20  5  5 20 20 10 15  5 10 10 20  0  5  5 20 15  0
 0  0  0  5 15  5 10 15  0 10 15  5 10 15  5 15 20 10 10 20  5 15 10  5  0  5 20 20 10  5 15  5 15 20 10  5 10 20 15 15 15  0 20  5 15 20 10  5 10 10 20 20  0  0  5 15  0 20 15 10 20 10  5  0  0  0 15

generates a code of length 67 over Z25 who´s minimum homogenous weight is 255.

Homogenous weight enumerator: w(x)=1x^0+736x^255+3400x^260+3032x^265+3948x^270+3412x^275+1028x^280+8x^285+20x^290+8x^295+8x^300+12x^305+8x^310+4x^315

The gray image is a code over GF(5) with n=335, k=6 and d=255.
This code was found by Heurico 1.16 in 0.52 seconds.