One thing to add, to go along with the tighter rod clearance. Let the motor get up to temp before you drive. It's all about running the motor in the proper temperature range.
ok ! good info .. right temperature ?? 190-200 F maximum ??
160-180ish deg is what I consider normal range. 190+ is too hot. I had over 100 lbs pressure at idle cold, under 20 lbs at idle at 210ish degrees and 30+ lbs of pressure at idle if temp was in the 180ish range. With a big pump the pressure will climb quickly with RPM even when hot, but I never like to see it under 20 lbs when its running.
