yes
http://www.centuryperformance.com/valveadjustment.asp
on a 350 engine to adjust valves tighten them down with engine running then back them off until it smooths out probably about a quarter of a turn
probably need to adjust your valves
307, 350, 400, 455
With the engine at TOP DEAD CENTER (TDC) Adjust the exhuast valve to .007 and the intake to .005.
Oldsmobile Didn't produce a V6 Cruiser in 1983 only a V8 350 or 307..there isn't a firing order to an engine that wasn't built...
The 2010 Lexus IS-350 has 24 valves.
The 2011 Lexus IS-350 has 24 valves.
The 2009 Lexus IS-350 has 24 valves.
The 2014 Lexus IS-350 has 24 valves.
The 2007 Lexus IS-350 has 24 valves.