Getting ready to do the chains and phasers and thought I should swap out the pump while I’m in there. But looking at Melling pumps and there’s basically two models. Which one should I get? Stock valve train, stg2 blower nsr cams and whipped @ 11.5 psi. Stock bottom end. 150k+ on the clock.
One says high volume and one says high pressure.
One says high volume and one says high pressure.