here goes. l69 305 ho. my plan. cam, 350 vortec heads, vortec manifold, headers. keep q-jet and ccc[emissions]. question. heads. stock 58cc vortec 64cc. shud i mill heads[how much]. head gasket. standard .039 or shim type 015? cam. summit 1102[204-214] or 1103[214-224]? will i have interference between valve retainer and seal due to lift? what kind of comp ratio am i looking at? i have a good 2004r trans and 373 posi rear. any thoughts or recommendations will beappreciated. semper fi