The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+116x^66+352x^67+723x^68+986x^69+1553x^70+1660x^71+2076x^72+2252x^73+2761x^74+2368x^75+3074x^76+2732x^77+2692x^78+2136x^79+2184x^80+1598x^81+1322x^82+756x^83+616x^84+354x^85+195x^86+148x^87+59x^88+12x^89+29x^90+4x^91+3x^92+4x^94+2x^97

The gray image is a code over GF(2) with n=304, k=15 and d=132.
This code was found by Heurico 1.11 in 17.5 seconds.