I just bought a moroso 7 qt pan. Got a couple of questions.. First how do you determine where full is? It says you have to cut the tube to get the full mark right. Second it has a bung welded on for its own dipstick. Which one do I use?? I have a real nice motorsport one that I would like to keep. so can you just plug the pan hole? Otherwise how do you plug the original hole in the timing cover?? Thanks for any info!!