The generator matrix

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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 67.

Homogenous weight enumerator: w(x)=1x^0+270x^67+397x^68+610x^69+559x^70+818x^71+684x^72+780x^73+575x^74+714x^75+502x^76+544x^77+360x^78+408x^79+313x^80+290x^81+120x^82+112x^83+53x^84+42x^85+17x^86+10x^87+2x^88+6x^89+1x^90+4x^91

The gray image is a code over GF(2) with n=296, k=13 and d=134.
This code was found by Heurico 1.16 in 12.9 seconds.