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

generates a code of length 73 over Z8 who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+90x^63+335x^64+692x^65+1064x^66+1198x^67+1905x^68+1900x^69+2518x^70+2410x^71+2902x^72+2688x^73+3045x^74+2660x^75+2422x^76+1868x^77+1821x^78+1126x^79+944x^80+482x^81+313x^82+190x^83+83x^84+40x^85+37x^86+6x^87+14x^88+8x^89+2x^90+2x^92+2x^97

The gray image is a code over GF(2) with n=292, k=15 and d=126.
This code was found by Heurico 1.16 in 39.1 seconds.