The generator matrix

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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 72.

Homogenous weight enumerator: w(x)=1x^0+270x^72+224x^76+12x^80+2x^88+3x^96

The gray image is a code over GF(2) with n=296, k=9 and d=144.
This code was found by Heurico 1.16 in 65.4 seconds.