Try here for resistances etc:
http://www.homepages.hetnet.nl/~pete...ick_check.html

Don't think you need a gap in there m8,the air that goes threw throttle
body on idle goes threw the hole in bottom that the idle screw sits in

As long as butterfly is'nt sticking in the throttle body it'll be ok.
Think the gap Stu was on about will be un-noticeable,that small.

Hope I'm right