The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+14x^82+64x^83+91x^84+64x^85+16x^86+2x^88+1x^96+2x^98+1x^116

The gray image is a code over GF(2) with n=336, k=8 and d=164.
This code was found by Heurico 1.16 in 0.2 seconds.