A HV pump really dosent increase pressure That why its high volume.It just pumps more.Want more pressure get the spring kit.My 440 runs 60 minimum hot with HV HP spring.Been running since I put it in like 20 years ago.When my son had the 62 300 with 40K original miles we installed the same setup.Ran minimium 45 to 50 hot all the time.That ran like 15 years and never a problem even with the OE 62 drive.Rocky

Chrysler Firepower