View Single Post
  #5  
Old 03-01-2014, 05:28 AM
jonathonar89 jonathonar89 is offline
Senior Chief
 
Join Date: Aug 2011
Location: Island Lake, IL
Posts: 265
Default

Quote:
Originally Posted by WARPed View Post
If you are running a dual plane intake do NOT use a 4/7 swap cam. A total waste of money and may actually hurt your performance by doing exactly the opposite of what it was supposed to do for a single plane manifold..
Can explain more on this?

What about new gm ls firing order?

I have a Performer RPM and I'm interested in running the latest firing order as opposed to just a 4/7 swap.