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

generates a code of length 88 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+37x^74+60x^75+176x^76+212x^77+364x^78+428x^79+778x^80+840x^81+1276x^82+1598x^83+1845x^84+2314x^85+2438x^86+2736x^87+2599x^88+2822x^89+2498x^90+2274x^91+1872x^92+1512x^93+1190x^94+908x^95+749x^96+420x^97+270x^98+162x^99+127x^100+58x^101+82x^102+24x^103+31x^104+14x^105+29x^106+2x^107+10x^108+6x^110+2x^112+2x^114+2x^116

The gray image is a code over GF(2) with n=352, k=15 and d=148.
This code was found by Heurico 1.16 in 67.8 seconds.