The generator matrix

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

generates a code of length 76 over Z8 who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+107x^66+408x^67+727x^68+1058x^69+1256x^70+1680x^71+2200x^72+2332x^73+2521x^74+2804x^75+2844x^76+2620x^77+2675x^78+2460x^79+1980x^80+1666x^81+1208x^82+854x^83+559x^84+354x^85+209x^86+104x^87+70x^88+26x^89+18x^90+10x^91+2x^92+4x^93+4x^94+1x^96+4x^97+2x^98

The gray image is a code over GF(2) with n=304, k=15 and d=132.
This code was found by Heurico 1.16 in 41.3 seconds.