This is really weird, I wouldve never expected a leak from my throttle body.
Anyways, Im doin a boost leak test and I had a few. I got them all fixed and the last one took me a while to find. I knew it was at the TB but couldnt pinpoint its actual location.
Well, ended up figuring out it was coming from the shaft that holds the throttle cable/throttle plate and ends in the TPS. Its actually leaking from under the spring on the throttle cable side.

The only thing I can think of, is it is a TB I got from somebody that had it bored out and P/P to 55. Maybe they didnt put all the seals back in.

Im gonna just put my stocker back in, didnt really notice a difference anyways.

LAters
DJ

i think its normal to have a small leak at the throttle body .

yep thats normal..
There was a post a while ago about a fix for it

yea somthing about taking the screws out and turning the flapper more or something like that