Holley eletric pump sometimes louder!! Like bad loud??

Ran the Holleys on a street car years ago and went thru a few of them, the damn case kept cracking and since they are made out of cheap pot metal we couldn't even weld the cracks. Finally Shitcanned the Holleys and started using Carter Competitions I am only on my 2nd one of them after many years of use. They do tend to be on the noisy side though and I will probably look into something else when this one takes a dump.