spring rate is for vaccum at idle, go to ebay and search for a link. they have a link in their ads to tell you which you need specific
example i run a 9psi spring since i have low vaccum at idle
spring rate is for vaccum at idle, go to ebay and search for a link. they have a link in their ads to tell you which you need specific
example i run a 9psi spring since i have low vaccum at idle