thanks for the info and pictures guys. i pretty much already had an idea on how to go about it (making template from gasket) just didnt know what to do about the lip down inside there with the hole in it for oil. i figured youd just want to smooth it out and by the pictures it looks like thats about it. how deep would you say you cut into them? i know the top part just depends on how the juggs are ported, but what about down in there an inch or so?