The generator matrix

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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+140x^70+88x^71+257x^72+88x^73+138x^74+16x^75+80x^76+16x^77+82x^78+24x^79+34x^80+24x^81+12x^82+8x^84+1x^88+10x^90+2x^94+3x^96

The gray image is a code over GF(2) with n=296, k=10 and d=140.
This code was found by Heurico 1.16 in 0.175 seconds.