The generator matrix

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

generates a code of length 66 over Z8 who´s minimum homogenous weight is 58.

Homogenous weight enumerator: w(x)=1x^0+77x^58+224x^59+279x^60+544x^61+584x^62+790x^63+622x^64+842x^65+572x^66+784x^67+611x^68+666x^69+436x^70+436x^71+234x^72+222x^73+101x^74+64x^75+37x^76+30x^77+20x^78+6x^79+7x^80+2x^82+1x^84

The gray image is a code over GF(2) with n=264, k=13 and d=116.
This code was found by Heurico 1.16 in 2.38 seconds.