The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  4  1  4  1  1  1  1  1  1  2  1  2  1  1  1  1  1  1  2  1  1  1  1  2  2  1  2  1  4  2  1  1  0  1  0  1  1  1  1  2  1  1  0  4  1  1  1  1  0  2  1
 0  2  0  0  0  0  0  0  0  2  6  2  2  6  2  2  4  0  4  6  6  2  2  4  2  4  0  6  4  6  2  4  4  4  4  4  4  2  4  4  6  4  2  2  2  6  0  0  4  0  2  2  6  2  0  0  0  0  2  2  0  4  2  2  2  4  0  6  2  2  4  0  0  0  0  4  6  2  2  2  6  0  4  0  0  2  0
 0  0  2  0  0  0  2  6  2  2  2  4  2  2  0  4  4  6  0  0  2  0  4  0  6  6  0  6  2  4  2  6  6  4  2  6  4  2  2  0  0  6  6  0  2  4  0  4  4  2  4  2  2  0  4  4  4  0  0  4  6  4  0  6  2  0  4  2  2  6  2  6  0  0  0  2  4  4  0  6  2  6  0  6  0  2  2
 0  0  0  2  0  2  2  2  4  4  0  0  2  6  6  2  4  6  2  2  6  0  6  2  0  4  0  2  4  4  0  6  6  0  2  2  2  2  6  2  0  2  6  6  0  2  2  6  6  6  2  0  4  0  2  6  0  4  4  2  0  2  4  6  6  2  4  4  2  2  2  2  0  0  6  4  0  6  6  0  6  6  2  6  2  2  0
 0  0  0  0  2  2  4  6  2  4  2  2  6  4  4  6  0  2  2  4  0  6  6  4  4  6  2  6  4  4  6  4  6  6  4  4  2  4  0  2  6  6  2  2  6  6  4  6  2  2  6  2  0  4  0  0  2  6  2  4  4  0  0  4  6  4  0  2  2  2  2  4  0  4  2  6  4  4  6  4  2  6  6  2  4  6  6
 0  0  0  0  0  4  4  4  0  0  4  4  4  4  0  0  4  0  0  4  0  0  4  4  4  4  4  0  4  4  0  0  0  0  0  4  4  0  4  4  4  4  0  0  4  4  0  0  0  4  4  0  0  4  0  4  4  0  0  0  4  0  0  0  4  4  4  0  0  0  0  4  4  0  4  0  0  4  0  0  4  0  0  4  4  4  4

generates a code of length 87 over Z8 who´s minimum homogenous weight is 78.

Homogenous weight enumerator: w(x)=1x^0+134x^78+290x^80+24x^81+338x^82+144x^83+390x^84+236x^85+466x^86+244x^87+455x^88+208x^89+356x^90+120x^91+227x^92+44x^93+156x^94+4x^95+121x^96+60x^98+46x^100+20x^102+5x^104+6x^106+1x^140

The gray image is a code over GF(2) with n=348, k=12 and d=156.
This code was found by Heurico 1.16 in 1.7 seconds.