The generator matrix

 1  0  0  1  1  1  6  2  1  1  1  2  4  1  0  1  1  1  6  1  6  1  2  0  1  6  1  1  1  2  1  0  4  2  1  1  6  1  1  4  1  4  0  1  1  0  1  4  1  1  1  1  1  6  1  1  2  1  2  6  1  1  1  1  1  1  1  1  1  0  4  1  2  6  0  6  1  1  2  1  1
 0  1  0  0  1  5  1  1  4  7  3  4  1  2  1  6  3  0  1  1  6  6  1  0  4  1  7  1  4  1  2  1  6  1  5  7  6  0  5  1  4  1  6  6  2  4  7  1  7  0  2  5  5  0  1  6  1  0  1  1  6  6  6  7  3  7  4  2  7  1  1  1  1  1  1  1  2  4  1  3  2
 0  0  1  3  3  0  7  2  6  2  1  1  1  5  6  2  4  5  1  1  1  4  2  1  6  5  4  7  7  3  5  0  1  4  0  7  1  4  1  5  5  7  1  7  2  1  1  6  7  6  0  2  0  1  1  7  2  5  0  7  1  3  4  0  4  2  3  5  6  2  7  3  0  2  0  7  4  3  1  3  7
 0  0  0  4  0  0  4  4  4  4  4  4  0  0  0  4  0  4  4  0  4  0  4  0  4  0  4  4  0  0  0  4  0  4  0  0  0  0  4  4  0  4  4  4  4  4  0  0  4  0  4  0  4  0  4  0  0  4  0  0  4  0  0  0  4  4  0  4  0  4  4  0  0  0  4  4  4  4  4  4  4
 0  0  0  0  4  4  4  4  0  4  4  0  4  0  4  0  0  4  0  0  4  4  0  4  4  0  0  0  4  0  4  0  0  4  0  0  4  4  0  4  0  4  0  0  4  0  0  0  4  4  0  0  4  4  4  4  4  0  0  4  4  0  0  4  4  0  0  0  0  4  0  0  4  4  4  0  4  0  4  0  0

generates a code of length 81 over Z8 who´s minimum homogenous weight is 76.

Homogenous weight enumerator: w(x)=1x^0+256x^76+72x^77+412x^78+64x^79+350x^80+40x^81+308x^82+16x^83+187x^84+36x^85+124x^86+8x^87+78x^88+8x^89+12x^90+8x^91+36x^92+4x^93+8x^94+19x^96+1x^100

The gray image is a code over GF(2) with n=324, k=11 and d=152.
This code was found by Heurico 1.16 in 2.73 seconds.