set up
Ferrera valves,retainers,guides,springs,locks
5 angle valve job with port polishing
CTR cams but rolling on stock rockers

Condition
1.3 Bar of boost

Question
How far can i push my head over my stock rpm limit?? or is this something that i would have to find own my own on a dyno with a tunner?

 

go on the dyno and find out what your power band is... with those head modificATIONS you should no problem with any rpm

 

thanks for the post ill do that