ok so when i drive my car normally it works fine but if i try to punch it, it wont go past 5000 rpm
i think it mite b the throttle positon sensor or vacum leak?

 

ok?
no ones gonna reply unless u tell us ur set up!!!!

 

sorry bout tht
i have a TD04 turbo on my ls-v
stage 2 skunk2 cams
skunk2 maniofld
skunk2 springs and retainers
top mount ram exhaust manifold
stock throttle body

 

2. BE SPECIFIC
-Make titles for threads, and questions clear and to the point!
-Be clear and objective.
-State the specifics of your situation (set-up, car, year, engine, components, etc).
-The more information you can give us, the better answer you will receive.

you have already posted about 5 threads asking help for info that has been talked about many times over.

you probably cant boost past 5k because you are in limp (fail safe mode)
please put a little thought into your posts, and search for your answer first as it probably has been covered before.