I would bump up your initial, check the float settings,floats not waterlogged fuel psi at idle but you do have a vac leak which needs to be addressed first. A guy on here "roadhazard" sells thin .015" paper side gaskets for the BB valley pan. I'd get a set & glue em on your current valley pan with Permatex 99MA "high tack" the thin red spray gasket adhesive in the purple can as it goes on light seals well and is extremely tacky. Holler how it turns out. Felpro has thicker side gaskets & it all depends on the height of the manifold in the "V". Mockup dry & go from there. You want the set of gaskets (thickness) that will give you the best intake to head bolt hole/port alignment & with deck height/milling/gasket/variables it could be anywhere and you might want to use no paper gaskets & in that case I'd use a THIN/EVEN swath of Permatex #2 in the toothpaste like tube around each of the 8 port holes in the metal valley pan gasket on the "bead" on both sides. EDIT Also check needle/seat(s) condition and floats/linkage not hanging up in their travel range
Last edited by RapidRobert; 06/06/14 10:02 PM.