[speedo]

i have a integra gsr and i wm thinking of putting the civic type r inatke and exhaust cams and calve springs in my gsr head.

question

1 do i have to replace my imtegra valves springs with dual valves springs?


2 is it needed to lift the head to install these parts



any sugestions :lol2

 

[speedo]

thanks

will dual vauve springs make a big difference ?
what gains will i get