I'm searching for oem camshaft specs. (lift, duration, etc...) for my engine, a 2008 Mercruiser 5.0L vortec TKS engine, 2bbl carb (serial#:1A322719). I had to rebuild bottom end (pistons bored to 30 over) due to piston scoring from spark plug debris in #7 cylinder and compromised cam cap/plug...