The generator matrix

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

generates a code of length 79 over Z8 who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+78x^66+74x^67+208x^68+160x^69+521x^70+506x^71+1036x^72+882x^73+1891x^74+1418x^75+2814x^76+1894x^77+3725x^78+2434x^79+3698x^80+1812x^81+2914x^82+1630x^83+1892x^84+716x^85+865x^86+510x^87+476x^88+154x^89+180x^90+78x^91+86x^92+14x^93+51x^94+6x^95+21x^96+8x^98+8x^100+6x^102+1x^106

The gray image is a code over GF(2) with n=316, k=15 and d=132.
This code was found by Heurico 1.16 in 64.2 seconds.