View Single Post
  #7  
Old 11-22-2022, 08:42 PM
Scott Stoneburg's Avatar
Scott Stoneburg Scott Stoneburg is offline
Ultimate Warrior
 
Join Date: Sep 2007
Posts: 2,199
Default

Quote:
Originally Posted by bluegoat65 View Post
Does it whistle when you shut down? Like a compression leak thru the valve seats. Or only when running or both? I ve only heard that when running, using 4150s when the throttle blades have the holes drilled in them to get the transfer slots in the correct positions. One is set to low and the air is being drawn thru the holes heavily. I know thats old school tuning, but thats how we did it...lol.
Only whistles while driving. Not at idle or on shut off