Use AT LEAST -10 lines! Less flow of
oil will not affect temperature! Install a thermostat in line to control temp. They are available from Earl's for about 30 bucks. I think the web site is
www.amstreetrod.com , also an excellent source for AN lines, etc and
oil coolers. I use thier 16 row with an inline thermostat and my cooler is hooked up all the time. No problems whether racing or cruising.