madcarson
06-28-2009, 07:14 PM
Hi I'm running Holley elec.pump,-8 feed fuel lines and -6 return to top of tank on 69 camaro with tnk sump.The problem is once running and shut off it pukes fuel out the breather line (orig.feed line) Do I need diff cap or ?:bsjerk:
Vegas69
06-28-2009, 08:34 PM
You need a vent equal to the feed line. 8 AN I know it's not what you want to hear but your tank needs a bung of 3/8 npt minimal for no long term problems. I'm sure your asking why? Well at full throttle your displacing maximum fuel and that means air must replace that fuel. I like to build my stuff to perform not compromise.