250 2v oil pressure issue

Hi guys,
When using yella terra roller rockers have yoy plugged the original oil hole?
I havent done so yet and my oil pressure seems down its around 15-20psi hot idle and wont get any higher than 45 it gets up pretty quickly but just levels off.
Engine is fresh and im hoping machine shop hasnt messed up clearances.
Is there any simple things you guys can think of to check?
Thanks
Brendan

Im going to get a mechanical guage and use that to rule out funky electrics
And also going to change oil filter and pull oil pump out and check its not full of running in stuff
Whilst at it ill check pickup gasket and pick up to sump clearance.
What is it supposed to be?
As i have an extra capacity sump i figure this is worth having a look at.
Thanks
Brendan

simple question:

> what oil filter is being used? , with one Mfg', some (including myself) have experienced low pressure until swapped out...

have fun

Hi
Its a repco brand one im going to swap it out for a ryco one
Thanks
Brendan

i run an anti drain back K & N oil filter in my 200, is the oiling the same on a 2v as a 200 when using roller rockers, i was under the assumption that using yella terra’s require oil through pushrods, lifter etc, if i am correct and this applies to the 250 2V also then has this been done to yours?

Hi
It does have oil through pushrods and is getting plenty of oil up through them
Thanks
Brendan