The generator matrix

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

generates a code of length 79 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+92x^70+336x^71+567x^72+746x^73+1038x^74+1172x^75+1241x^76+1280x^77+1318x^78+1344x^79+1234x^80+1260x^81+1116x^82+940x^83+799x^84+622x^85+466x^86+322x^87+186x^88+118x^89+92x^90+44x^91+34x^92+6x^93+4x^94+2x^95+2x^98+2x^100

The gray image is a code over GF(2) with n=316, k=14 and d=140.
This code was found by Heurico 1.11 in 5.23 seconds.