The generator matrix

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

generates a code of length 85 over Z8 who´s minimum homogenous weight is 75.

Homogenous weight enumerator: w(x)=1x^0+156x^75+498x^76+828x^77+1191x^78+1602x^79+1689x^80+2134x^81+2120x^82+2488x^83+2452x^84+2578x^85+2543x^86+2638x^87+2113x^88+2052x^89+1670x^90+1338x^91+1008x^92+676x^93+382x^94+290x^95+137x^96+86x^97+58x^98+14x^99+4x^100+14x^101+2x^102+2x^103+2x^104+2x^106

The gray image is a code over GF(2) with n=340, k=15 and d=150.
This code was found by Heurico 1.16 in 45.3 seconds.