Bowtie Block Issue

[1BADBET]

I wonder what lobe is on the cam. Could be too aggressive for the hydraulic lifters and that's why solids made an improvement. I'm also wondering if the gauge or sending unit could be off. Had this problem with a customer once, thought he had way too much oil pressure at idle but it turned out his el cheapo gauge sat on 25lbs with the car off.... lol. That's what happens when you blow the budget on the engine and forget about all the other nickel dime stuff that adds up.