Re: 350 timing
let the vehicle get to operating temperature(very, very, i can't stress this enough important) > watch something like a plug wire that is vibrating > turn distributor to the point where the wire is moving the least(engine running smoothest) > tighten bolt > kill engine > restart immediately > if the engine has a hard time turning over(like the starter is having a hard time moving it) retard the timing a little...if not, it's set > hit the balancer with a timing light so you know the timing for future reference.
hope that helps
--My truck: 2007 GMC 1500 crew cab, Kenwood DNX570HD, DLS front stage, 2x SQ3500s, 2x Sundown NSv3 12"s in blow through, Second Skin deadening.
--Wife's car: 2013 Chevrolet Impala LTZ, Kenwood DNX470, GermanMAESTRO components on CT125.2, 2x AT10"s on an AT800.1, RF Deadskin deadening.
--Work truck: 2014 GMC 2500 crew cab, Kenwood DNX470, Kenwood front stage, DD M1A on a pair of American Bass XD10s.