Stock? Hi Pressure? Hi Volume?

Sanguine said
Building a 340 for my '75 duster, strictly for street use...before I had a stock pump with a hi pressure spring installed
I know you lose HP with the high volume...
Do I really need anything but the stock pump?
She wont see anymore than 6500 RPM and then not very often...
Also going to run a 8 qrt Moroso pan...anyone have one of these installed? I was wondering about the ground clearance? cant be much worse than the header clearance

Had a Moroso 8qt pan on the 340 in my '73 Duster. Won't do that again! Sump is 10" + and not street friendly (at least around my neck of the woods).