10W-30 Valvoline VR1
oil (not
synthetic)
I don't know if there is an
oil restrictor.
How much
oil pressure would you like to see at idle?
The valve train noise seems to be much less off idle.
Build sheet shows - .080 oil restrictor in DSCK
Elgin lifters HL-2083 HPS
It sounds like the first suggestion is thicker oil. Does that mean 20W-50.
John