The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  1  1  2  1  1  1  2  4  1  4  0  1  1
 0  2  0  0  0  2  6  2  4  0  4  0  2  6  6  6  0  4  0  2  2  4  2  2  2  2  0  0  6  0  2  4  6  4  6  4  2  4  6  4  4  6  4  6  0  0  2  2  0  4  4  2  2  4  4  2  4  6  4  6  2  6  4  6  2  0  2  0  6  4  2  0  4  4  6  2
 0  0  2  0  2  2  2  4  6  0  0  2  2  6  4  0  0  6  6  6  6  4  4  0  0  4  2  6  6  4  6  4  6  4  2  4  4  2  4  6  6  4  0  6  4  6  6  4  2  2  2  2  0  6  0  6  0  0  4  0  4  2  6  4  4  2  2  2  4  4  4  4  2  2  4  2
 0  0  0  2  2  4  6  2  0  0  2  2  0  6  2  4  4  2  4  4  2  6  0  2  6  0  0  6  4  0  6  2  4  4  2  6  4  2  2  4  6  4  4  2  6  4  4  2  6  6  4  4  2  0  6  0  0  4  4  6  6  2  4  4  4  6  2  4  0  6  6  6  6  4  6  4
 0  0  0  0  4  4  4  0  4  4  4  0  0  0  4  4  4  4  0  4  0  0  4  4  0  0  4  0  0  0  4  4  4  0  4  4  0  4  0  0  0  4  4  0  0  4  0  4  4  0  4  0  0  0  4  4  0  0  4  0  4  0  4  0  4  4  4  0  4  0  4  4  0  4  4  4

generates a code of length 76 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+58x^70+116x^72+28x^73+132x^74+120x^75+197x^76+64x^77+128x^78+40x^79+53x^80+4x^81+36x^82+30x^84+14x^86+2x^88+1x^140

The gray image is a code over GF(2) with n=304, k=10 and d=140.
This code was found by Heurico 1.16 in 0.257 seconds.