after installing my indys on my 440 with the outside oiling for the heads i notice my oil pressure is down a lot was 65+/- @ idle, now about 28 +/- @ idle..is it necessary to install a reducer in the oil line to restrict the flow to the heads??? i don't want to empty the oil pan @ 6500 rpm!! or is this normal..when i up the rpm in neutral the pressure comes up to around 60lbs@ 2500 rpm..its all new, i don't need to lose it..thanks in advance