The generator matrix

 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  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  2  1  1  4  1  1  4  1  1  1  1  2  1  1  1  0  1  1  0  1  4  4  1  1  2  2  1  1  1  1
 0  2  0  0  0  4  0  4  0  6  6  2  6  2  6  2  0  4  2  6  0  6  4  6  4  6  6  0  0  0  2  6  4  6  4  0  6  6  2  4  6  0  6  0  4  4  0  2  0  0  6  2  2  4  2  0  6  2  2  2  2  4  6  0  4  4  2  0  4  0  6  4  2  6  0  0  4  4  4  2  4
 0  0  2  0  0  4  2  2  2  2  6  2  2  0  0  0  4  2  6  4  0  0  2  6  6  6  4  0  6  4  0  2  4  2  0  4  6  4  4  2  0  2  0  2  2  4  4  6  6  4  0  6  2  2  6  4  0  4  6  2  6  6  2  2  6  0  0  0  2  2  4  4  0  2  6  4  2  0  4  2  6
 0  0  0  2  0  2  2  6  4  0  2  0  2  2  2  0  6  4  2  4  0  6  2  2  6  4  6  4  0  6  4  4  4  4  6  2  0  0  2  6  0  2  6  4  4  2  4  2  4  0  2  6  6  4  0  2  6  6  4  4  0  6  6  6  0  2  2  6  4  2  4  2  0  0  2  6  0  4  0  4  4
 0  0  0  0  2  2  4  2  6  2  2  4  4  0  2  2  6  6  6  2  4  0  2  0  0  4  2  6  4  4  0  6  4  2  6  0  0  2  0  0  4  2  6  2  0  0  0  0  6  2  4  2  6  4  4  2  2  4  4  6  2  4  0  2  0  4  6  0  2  2  4  6  2  4  0  2  0  4  0  4  6

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

Homogenous weight enumerator: w(x)=1x^0+154x^74+4x^75+158x^76+44x^77+242x^78+144x^79+264x^80+152x^81+288x^82+100x^83+137x^84+60x^85+112x^86+8x^87+79x^88+50x^90+28x^92+14x^94+4x^96+4x^98+1x^140

The gray image is a code over GF(2) with n=324, k=11 and d=148.
This code was found by Heurico 1.16 in 7.37 seconds.