The generator matrix

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

generates a code of length 84 over Z8 who´s minimum homogenous weight is 80.

Homogenous weight enumerator: w(x)=1x^0+172x^80+44x^81+276x^82+32x^83+168x^84+24x^85+116x^86+12x^87+68x^88+12x^89+36x^90+26x^92+16x^94+4x^95+9x^96+4x^98+2x^100+2x^104

The gray image is a code over GF(2) with n=336, k=10 and d=160.
This code was found by Heurico 1.16 in 0.247 seconds.