The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+29x^72+80x^73+28x^74+96x^75+16x^77+2x^78+1x^80+1x^88+2x^94

The gray image is a code over GF(2) with n=296, k=8 and d=144.
This code was found by Heurico 1.16 in 0.124 seconds.