Weird on start up... Small Vibration at 1k

Alright well i got the car back on the road... replaced the 02 sensor... clutch is broken in already... my car halls some balls now... Big difference in the 1-2 shift. Well on start up sometimes ill put my car in to gear and about the first 2 times ill do it in the morning after the car sits for like 12 hours + it will feel like it bogs down... it will only do it like the first or second time i put it in first gear in nthe morning... also there is a small vibration at about 1000-1100 RPMS... i dont think that this was there b4 i changed the clutch, plugs,wires,cap,rotor. You think an improperly gaped plug may cause that problem... Im retty sure i gapped them all to .052-.056 but it is possible i missed one. because i was doing it in a shop and they were closing up and i didnt wanna hold them up because they let me use the lift and tools for free... So i was a little rushed... any other ideas... The Clutch is working great! thanks for all the help again guys... Made me feel really good about my self:SNSign:

the vibration at 1k does occur no matter what hot or cold... i gotta check for codes on firday when i go home from school... it just bogs when i put it in to first gear in the morning the first 1 or 2 times....

ANy ideas???

ho2s would make sense i did jut put in a new o2 sensor... i hope something isnt up with the clutch... its not bad just a little rumble... hardly noticable but like if i rev it when it comes back down to about 1100 rpms i can feel the car shake a tad... it will also do it if i hold it at 1100 rpms