hey guys i just did the silent shaft deletes on my 88 2.6 and while i had it tore down i decided to replace the oil pump. the silent shaft delete came with an open gasket. the instructions included in my fel pro head set said that on 83 and later 2.6 engines you should use a restricted gasket for the oil pump. ive tried to buy an restricted gasket like the truck came with but no one carries it. will it make a difference if i use the open gasket? thanks