Tranny/ Clutch question.

Ok. i recently installed a new xtd stage 3 into the d16z6 as some of you might know.
I was wondering.
Anything in the tranny re-installation process make the car slower?.
darn car doesnt seem as fast as it was when i had the stock clutch in there.
Any ideas? the tranny only goes in smoothly one way right?.
before re-intalling the trany i made sure the clutch was properly aligned with the supplied alignment tool. Left it in place while i torqued dow the pressure plate. Tool the alignment tool out. then proceeded to re install the tranny.
now it's more of a rough ride. like i feel a really good vibration around 3000 rpms. dont know what it is. while the tranny was out i replaced all seals. cleaned it up nicely.
it just has me wondering if somehow my input shaft is a tiny bit off causing it to make this weird ass vibration. and it definately didnt do it before with the old clutch.
I was wondering.
Anything in the tranny re-installation process make the car slower?.
darn car doesnt seem as fast as it was when i had the stock clutch in there.
Any ideas? the tranny only goes in smoothly one way right?.
before re-intalling the trany i made sure the clutch was properly aligned with the supplied alignment tool. Left it in place while i torqued dow the pressure plate. Tool the alignment tool out. then proceeded to re install the tranny.
now it's more of a rough ride. like i feel a really good vibration around 3000 rpms. dont know what it is. while the tranny was out i replaced all seals. cleaned it up nicely.
it just has me wondering if somehow my input shaft is a tiny bit off causing it to make this weird ass vibration. and it definately didnt do it before with the old clutch.