I agree with Scott about the high volume pumps.........they put a lot of stress on the dist. gear especially with cold heavy
oil on start up and you'd be surprised how long it takes to warm up 8 or more quarts of
oil!!!!!!!!!!!!.......I use a Melling HP series
oil pump in my race car and love it.......they are standard volume and the pressure can be adjusted and they are blue printed from Melling, if memory serves me right, it was about 42 bucks..............best money I spent........
running anything from 15/40 conven. oil to 20/50 Mobil 1, it idles at 60 psi cold and 40 psi hot, once the oil is 200 degrees or more, anyhting over 1500prms gets me 55 psi..........
David