Looking into these for the stocker. Anyone run them?

I have the cast version in my SBC, no complaints.
Weird though, at idle speed the pressure gauge fluctuates wildly. Off idle rock steady.
Could be my gauge, but it started with this new oil pump.

I just read an article Goob - On All Cylinders..see if I can find it.

https://www.onallcylinders.com...ark-tooth-oil-pumps/

I’m running one. Man are they smooth compared to the old style gears. I won’t go back. Oh, no worries about losing the pick up either.

I have a cast and a billet in newest motor. Steady pressure at all times no pulsing, very happy with both.

Thanks guys!

We have a small block std volume ST at the shop. I’ll build a screen and try it in the dyno. Vs my std volume bbc melling.