The generator matrix

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

generates a code of length 70 over Z8 who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+215x^60+168x^61+824x^62+580x^63+1643x^64+1208x^65+2484x^66+1804x^67+3171x^68+2428x^69+3778x^70+2336x^71+3434x^72+1852x^73+2480x^74+1200x^75+1407x^76+460x^77+608x^78+220x^79+262x^80+28x^81+116x^82+4x^83+39x^84+14x^86+4x^88

The gray image is a code over GF(2) with n=280, k=15 and d=120.
This code was found by Heurico 1.16 in 41.6 seconds.