The generator matrix

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

generates a code of length 81 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+30x^74+258x^75+252x^76+486x^77+311x^78+476x^79+289x^80+412x^81+172x^82+290x^83+202x^84+266x^85+123x^86+186x^87+75x^88+128x^89+55x^90+36x^91+8x^92+14x^93+10x^94+2x^95+2x^96+4x^97+3x^98+2x^100+2x^101+1x^104

The gray image is a code over GF(2) with n=324, k=12 and d=148.
This code was found by Heurico 1.16 in 0.969 seconds.