416 low oil pressure at idle

What filter are you guy's running on your 416's - our build is a 72 Duster, 416 with TTi step headers, the 1068 is a real tight fit and the 1085 seems better, have not tried the 1515 because I don't think it will fit, I have all the parts to run a remote setup but have not had the time to do it because of all of the other issues...