The generator matrix

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

generates a code of length 73 over Z8 who´s minimum homogenous weight is 66.

Homogenous weight enumerator: w(x)=1x^0+255x^66+436x^67+590x^68+564x^69+794x^70+732x^71+662x^72+616x^73+690x^74+560x^75+555x^76+440x^77+351x^78+292x^79+273x^80+160x^81+111x^82+28x^83+53x^84+12x^85+5x^86+10x^88+2x^90

The gray image is a code over GF(2) with n=292, k=13 and d=132.
This code was found by Heurico 1.16 in 2.49 seconds.