Depends upon so many factors, where to begin?
(1) Model of the 350 engine (lots of difference between an LT-1, LS1, LS6, etc and an L98)
(2) Year of 350 engine
(3) Application (what vehicle)
(4) Power to weight ratio of vehicle
(5) Transmission and Gear Ratio
(6) Condition of the engine.
The practical limit is 6500 rpm. Above that and you risk parts failure.
5.7L is a 350 engine.
What are the differences between a 350 and a 454 engine?
powerglide is a tranny
The 2009 Lexus IS-350 has a V6 engine.
The 2014 Lexus IS-350 has a V6 engine.
The 2006 Lexus IS-350 has a V6 engine.
The 2008 Lexus IS-350 has a V6 engine.
The 2013 Lexus IS-350 has a V6 engine.
The 2012 Lexus IS-350 has a V6 engine.
The 2011 Lexus IS-350 has a V6 engine.
The 2010 Lexus IS-350 has a V6 engine.