The generator matrix

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

generates a code of length 81 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+542x^74+1151x^76+1336x^78+1354x^80+1250x^82+970x^84+722x^86+448x^88+288x^90+103x^92+22x^94+5x^96

The gray image is a code over GF(2) with n=324, k=13 and d=148.
This code was found by Heurico 1.11 in 32.2 seconds.