Hey guys, has anyone done a camshaft swap on the 4.6 2005-2010? I ordered the ford racing hot rod cams and im having a guy install them for me. He told me we need TWO timing chain wedges.. is that correct??? The part number is 303-1175, they are not sold in pairs so i was wondering if this installer is correct. I'm doing this on a Shelby GT with low miles so I have a lot to lose and would greatly appreciate any advice related to this thread or non-related. Thanks!