The generator matrix

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

generates a code of length 75 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+191x^70+178x^71+307x^72+186x^73+234x^74+170x^75+208x^76+100x^77+133x^78+54x^79+60x^80+28x^81+62x^82+26x^83+54x^84+16x^85+18x^86+4x^87+10x^88+6x^89+2x^90

The gray image is a code over GF(2) with n=300, k=11 and d=140.
This code was found by Heurico 1.16 in 0.298 seconds.