timing gears Come as a Matched Set. So Use them as they come. Miss matching will do more then just make them Whine. I know been there done that Because of some silly A** shop who had no clue. and I Ripped a set apart @5000 bent up all exhaust valves and 7 push rods.And a few intakes.
It is also in one's best interest to mech. fasten the cam gear when in Dout. BUT at the VERY LEAST BE SURE the GEAR has been HEATED before installing.!!!
Larry/Twisted6 [oooooo] Adding CFM adds boost God doesn't like ugly.