sorry to steel the topic but i just got thease THROTTLE BODYS for a project im doing but not on my Tuscan because its totaly sorted i got me car from Str8-six any way im cleening them because as you can tell from the photo thay need a cleen and i see there is some sort of gunk /paste? around the grub screw/thread when putting it back do i need to get some sort of paste? or lock tight? hope some one can help? and if i have to use the paste where would i get it from?