The generator matrix

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

generates a code of length 80 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+196x^70+72x^71+526x^72+280x^73+878x^74+640x^75+1219x^76+860x^77+1648x^78+1252x^79+1617x^80+1116x^81+1548x^82+988x^83+1076x^84+564x^85+770x^86+308x^87+345x^88+60x^89+212x^90+4x^91+104x^92+50x^94+38x^96+10x^98+1x^104+1x^108

The gray image is a code over GF(2) with n=320, k=14 and d=140.
This code was found by Heurico 1.16 in 15.7 seconds.