Author: Hixon Racing Ent. November 2, 2006 at 22:49:43 from 220.127.116.11
I have a brand new Holley 4412 500cmf. that was reworked by Holley to make it 525cmf.for Racing! We used them once and did awsome!....Also i have a brand new Holley 7448 350cmf. that was reworked by Holley to make it 375cmf.