The generator matrix

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

generates a code of length 76 over Z8 who´s minimum homogenous weight is 67.

Homogenous weight enumerator: w(x)=1x^0+46x^67+122x^68+250x^69+458x^70+318x^71+706x^72+448x^73+951x^74+492x^75+825x^76+546x^77+831x^78+426x^79+664x^80+276x^81+364x^82+150x^83+92x^84+60x^85+54x^86+30x^87+17x^88+10x^89+24x^90+8x^91+4x^92+8x^93+4x^94+2x^95+2x^97+1x^98+1x^100+1x^102

The gray image is a code over GF(2) with n=304, k=13 and d=134.
This code was found by Heurico 1.16 in 3.66 seconds.