The generator matrix

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

generates a code of length 76 over Z8 who´s minimum homogenous weight is 69.

Homogenous weight enumerator: w(x)=1x^0+64x^69+96x^70+154x^71+107x^72+196x^73+137x^74+242x^75+100x^76+220x^77+154x^78+190x^79+94x^80+140x^81+50x^82+54x^83+12x^84+20x^85+4x^86+4x^88+2x^90+2x^94+1x^96+2x^98+1x^104+1x^106

The gray image is a code over GF(2) with n=304, k=11 and d=138.
This code was found by Heurico 1.16 in 0.564 seconds.