so for now will a type r valvetrain be ok for turbo or supercharger or should i upgrade it to the rev hard valvetrain ? and is rev hard valve train any good let me know asap!!!!

 

you mean Rev Valves, right? not rev hard

 

I have all type-r valvetrain in my engine but also got the portflow inner valvesprings for some extra insurance.. They are $80 a set so its pretty cheap..

 

no it is rev hard . i seen it ill get u the link later

 

i've got itr valvetrain for sale, if you're interested

 

Upgrade the valvetrain for reliability or more power? Upgrading the valvetrain for reliability isn't necessary for FI, but usually necessary when putting bigger cams in.

 

ight cuz right now i got itr valvetrain and got rlz retainers and rlz valve springs? and i was gonna turbo or supercharger so should i keep the itr valvetrain or upgrade it to something better ? if better what valvetrain should i go wit? also anyone every hear or use rlz retainers and rlz valve springs before?