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  7  1  1  1  1  1  1  7
 0  7  0  0  7  7 28 14 21  0  7 21 21 21 35 14 28 14  0 28 21  0 14  0  7 42 21 35 14 35 35  7
 0  0  7  0 35 28 21 35 42 21 21 21 35 35 28  0 42 42 42  0 42 42 28  0 21 42 28  0 35 35 35 14
 0  0  0  7 35  7 14 42 42 28  7  0 14 42 42 35  7 35 35 35 28  7  7 42 35 21 28 35 14 21 28 21

generates a code of length 32 over Z49 who´s minimum homogenous weight is 175.

Homogenous weight enumerator: w(x)=1x^0+432x^175+294x^180+522x^182+3528x^187+330x^189+10584x^194+414x^196+294x^203+240x^210+120x^217+48x^224

The gray image is a code over GF(7) with n=224, k=5 and d=175.
This code was found by Heurico 1.16 in 7.3 seconds.