The generator matrix

 1  0  0  1  1  1  2  6  4  6  1  1  1  1  1  2  1  1  4  4  1  2  1  1  1  1  6  0  1  1  1  1  1  1  0  4  0  1  2  1  1  1  6  1  6  1  2  4  6  0  0  1  6  1  1  1  1  2  1  1  1  2  0  4  1  1  1  1  1  1  1  1  2  0
 0  1  0  0  1  1  1  2  1  1  3  7  2  2  2  0  6  5  1  2  5  1  4  5  3  0  1  1  7  3  4  1  7  0  6  1  1  7  1  1  5  3  1  6  1  4  1  1  4  1  4  6  6  6  4  1  2  0  4  0  3  2  1  0  2  0  4  5  6  3  2  4  0  1
 0  0  1  1  4  5  1  1  1  0  4  3  5  0  7  1  6  1  0  1  2  3  3  7  6  2  0  7  6  1  5  4  7  3  1  2  7  4  6  7  6  1  7  1  2  1  5  6  1  1  1  0  1  3  6  2  2  4  0  0  7  1  6  1  4  6  4  5  7  0  6  2  0  2
 0  0  0  4  0  4  4  4  0  4  4  0  0  4  0  0  4  0  4  4  4  0  4  4  0  0  0  4  4  0  0  4  4  4  4  0  0  0  4  0  0  4  4  0  0  4  0  4  0  4  0  4  4  0  0  4  4  4  0  4  4  0  0  4  0  4  0  4  4  0  0  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+142x^70+96x^71+240x^72+80x^73+156x^74+16x^75+78x^76+16x^77+60x^78+16x^79+41x^80+32x^81+24x^82+22x^84+2x^88+2x^94

The gray image is a code over GF(2) with n=296, k=10 and d=140.
This code was found by Heurico 1.11 in 0.236 seconds.