Im building a new pulling motor and wanna do external wet sump setup. Have done some searching and came up with a few diff pumps. So my question is which pump is the best? Ive also seen tractor pullers run hydralic pumps as oil pumps. Is there a down fall to the hydralic pump other than not being able to run the turbo oil seperatly? Also looki g for a oil cooler block off like keating make but he doesnt make one for the 6.7 block. Any info would b appreciated.