The generator matrix

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

generates a code of length 84 over Z8 who´s minimum homogenous weight is 75.

Homogenous weight enumerator: w(x)=1x^0+140x^75+388x^76+606x^77+849x^78+986x^79+1060x^80+1220x^81+1335x^82+1298x^83+1256x^84+1190x^85+1096x^86+1046x^87+950x^88+884x^89+734x^90+524x^91+328x^92+210x^93+125x^94+64x^95+43x^96+12x^97+19x^98+2x^99+4x^100+4x^101+2x^102+4x^103+2x^104+2x^109

The gray image is a code over GF(2) with n=336, k=14 and d=150.
This code was found by Heurico 1.16 in 12.3 seconds.