The generator matrix

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

generates a code of length 83 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+72x^70+110x^71+241x^72+270x^73+450x^74+632x^75+855x^76+1164x^77+1488x^78+1906x^79+2311x^80+2632x^81+2879x^82+2914x^83+2808x^84+2658x^85+2246x^86+1980x^87+1442x^88+1182x^89+844x^90+572x^91+387x^92+240x^93+161x^94+66x^95+106x^96+44x^97+31x^98+10x^99+26x^100+2x^101+16x^102+2x^103+11x^104+4x^106+4x^108+1x^110

The gray image is a code over GF(2) with n=332, k=15 and d=140.
This code was found by Heurico 1.16 in 74.8 seconds.