The generator matrix

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

generates a code of length 86 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+47x^74+70x^75+150x^76+290x^77+275x^78+528x^79+535x^80+964x^81+713x^82+1576x^83+899x^84+1782x^85+1018x^86+1712x^87+901x^88+1472x^89+685x^90+958x^91+410x^92+502x^93+253x^94+232x^95+125x^96+92x^97+59x^98+36x^99+32x^100+18x^101+12x^102+8x^103+13x^104+8x^106+4x^108+2x^110+1x^112+1x^116

The gray image is a code over GF(2) with n=344, k=14 and d=148.
This code was found by Heurico 1.16 in 17.8 seconds.