20 valve black top/ ep70 Jun 13, 2012 9:38:47 GMT -8 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by caltech on Jun 13, 2012 9:38:47 GMT -8 i was thinking about a 4age 20 valve black top in my ep70 but i need answers to how well this set up works...HELP anyone?