oil pressure

famous bob said
this ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I have the hi volume pump spring shimmed to get the hot / idle pressure to what it is, thus the hi cold start up pressure.
ONLY run mopar filters, and have had to tighten them a hair more than normal on install. , just forgot to this time.
I used to run Phillups troparctic 20w40 in my new 68 barracuda back in the day, but haven`t seen any for yrs., would not be vmuch diff. than 20w50 I just took out , because of colder weather!

I think the problem is that you shimmed the spring. That is why you have such high cold pressure. Take the shim out and/or put in a soft spring and then shim the soft spring to get you the correct pressure at speed. Typically with a high volume pump you need to run a shimmed soft spring to get the correct balance between oil pressure at idle and at full throttle.