Thread: Any Advice On Valves?
View Single Post
Old 06-21-2013, 12:49 PM
  #5  
zipper06
Senior Member
RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
Default
As oldandtired said, Manely severe duty unless it will be blown or turbo charged, then it's extreme duty in that case.
The severe duty can handle 300 lbs spring pressure. With 10 degree keepers

Zip.
zipper06 is offline  
Reply