Story of my life

Just tonight I installed a Howe racing master cylinder to replace my worn out Clutch MC, and after getting everything put back together, the thing starts to leak into the interior. I am not only really mad, but I also don't know what to do. I wont be able to take it out until Friday afternoon so I have stuffed rags in between the MC and the fuse box. Is it normal for a brand new MC to leak a little at the start before the seals swell a little? or is this a defective product I should send back? The sooner I can get this thing back on the road the better.

Thanks for the help

didnt have that prob w/mine, is the line leaking? is the roll pin in tight enough on the mc?

Should not need to break in a MC.