New Master Cylinder Lid Leaks
 

I put on a new master cylinder, booster,hold off valve and some new brake lines and rear wheel cylinders on my 1970 Judge.
Brakes work fine only complaint I have is that the new master cylinder lid leaks fluid when I apply the brakes it just doesn't seal right.
Has anybody else have this happen with a new reproduction master cylinder and is there a cure?
Thanks

Is your lid new or used? Is the rubber seal/gasket new or used?

Yep, I put on a new booster/master cylinder bought from Ames and the master cylinder leaked from day one. Went to a local brake supplier and bought a new one. No issues since.

went through 3 before found one that didnt leak.2 from napa 1 from autovalue the last was a autozone.All leaked out the back left corner.this was after i painted them of course...