Never heard of um. My life was fine before and will be fine after. lol
I get mine from pumpsfuel.com
I've been trying, well, kinda said " screw it" for a few years to score a Carter, like the ol rebuildable ones, for a few years. Just wanted something other than the local chain store crap. I found some stock install, mechanical pumps, that were supposed to be a Lil higher pressure w maybe a Lil more flow.... but weren't a known source, chicom stuff. Price was good, but that was 2 years ago