The generator matrix

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

generates a code of length 81 over Z8 who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+47x^70+128x^71+216x^72+336x^73+451x^74+722x^75+914x^76+984x^77+1135x^78+1286x^79+1359x^80+1362x^81+1382x^82+1344x^83+1194x^84+926x^85+802x^86+620x^87+366x^88+252x^89+168x^90+142x^91+91x^92+32x^93+31x^94+38x^95+18x^96+10x^97+14x^98+8x^99+2x^101+1x^102+1x^106+1x^108

The gray image is a code over GF(2) with n=324, k=14 and d=140.
This code was found by Heurico 1.16 in 15.5 seconds.