The generator matrix

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

generates a code of length 84 over Z8 who´s minimum homogenous weight is 82.

Homogenous weight enumerator: w(x)=1x^0+208x^82+168x^84+72x^86+33x^88+24x^90+2x^92+1x^96+2x^100+1x^104

The gray image is a code over GF(2) with n=336, k=9 and d=164.
This code was found by Heurico 1.16 in 3.65 seconds.