Nirous tuning Jul 17, 2016 20:50:43 GMT -5 Quote Select PostDeselect PostLink to PostBack to Top Post by novaguy on Jul 17, 2016 20:50:43 GMT -5 My current combo is 45 degrees total timing and want to spray 150shot. How much timing should I take out?should it be square jetted? I have 6.5 psi