FX Loop volume problem on Mesa DC 3 and Marshall JCM 2000 ds

[na3d]

Hi, so when I put my MXR Carbon copy in the FX loop on both amps on the clean or OD channels of the amps everything is fine. But I use other pedals ( Pro Co RAT, Big Muff, TS 808 etc.) and when i use them (on a clean channel) the sound of my MXR Carbon copy delay is too low? You can even hear the delay! I allready put the FX loop level on max and still to low!
Any idea?

[Reeltarded]

Have you considered putting the distortion in front of the amp?

Kudos for looping the delay.

[na3d]

All the pedals are allready in the front!

[na3d]

Only the Carbon Copy dealy is in the FX Loop!