The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+336x^80+64x^82+272x^84+64x^86+244x^88+32x^92+8x^96+2x^112+1x^128

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 16.3 seconds.