The generator matrix

 1  0  0  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1 10  1  5  1 10  1  1  1  1  1  1  1  1  5  1  1  1  1  1 20  1  1  1  1  1 15  5  1  1  1 15  1  1 10  1  1  1  1  1  1  1  1  1 20  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  5
 0  1  0  0  5 20 15 16  7 14 16  1  1 18 24 11 17  8 22  6  1  9  1 18  1 24 13  7 13 19  2 19 15  1 16  8  3  1  0  1 10 22 21 24 11  1  1 21 20 19  1 12  0 10 14 12  7  9 10  6  3 11  3  1 17 13 13 20 15 20 22  5 19 13  7  1  6 24 14 15 20 17 24  1
 0  0  1  1 22 24 18 15 10  5  8 24  7 17  9  2  2  9 19 16 18 17 14 11 11 13 13  6  5 21  8  1 22  5 21  9  7 10  0 14 13  0 18  5  4 17  8  3  2 12  5 11 15  1 14  3 17  5 13  2  9  0  7  7 18 11  8 17 20 24 24 18 10  7 16  3  5 16 17 12 20  8  3  5
 0  0  0 15 15 15 15  0  0  0 15 20 10 10  0  5  0 10 15 15 10 20 20 15 20  5 20 10  5  0  0 20 20  5 20 15  0  5 10  5 10  5  5 10  0 20 15  0  5  5 15  5  5  5  5 15  5 15  0  0  0 15 20 15 10  0  5  0 20 20  5 20 20 15 15 20  5  5 15 10 15 20 15 15

generates a code of length 84 over Z25 who´s minimum homogenous weight is 320.

Homogenous weight enumerator: w(x)=1x^0+1380x^320+2100x^321+700x^322+2968x^325+5720x^326+2100x^327+5772x^330+7080x^331+2940x^332+5816x^335+7960x^336+2560x^337+5612x^340+6960x^341+2080x^342+4392x^345+5360x^346+1700x^347+1692x^350+2140x^351+420x^352+444x^355+180x^356+24x^360+8x^365+8x^370+4x^375+4x^380

The gray image is a code over GF(5) with n=420, k=7 and d=320.
This code was found by Heurico 1.16 in 33.5 seconds.