boosted07ss

i just put a gm stage 2 clutch in and i m having some wierd vibrations. i have zzp poly inserts and yes they vibrate but its more than usual. i loosened every mount and retightened but nothing has worked yet. the vibration are mainly in the steering wheel and in the pedals and seats. it only vibrates between 1500-2500 rpms any help or advice would be greatly appreciated thanks