a lil polishing might be all that's called for...can you see any high spots on the slide that need work? also, i recall someone saying something about a slide being out of round, maybe that's it?
Make a "tube" of 400-600 grit wet or dry (black stuff) and turn the slide a few times, clean it off, then check your fit. You don't want to remove any more material than you need to. If you do, it will suck air and cause the engine to run lean.azkronic said:the barrel of my new throttle was so tight I had to gently pry it out today Can someone tell me what grit I should use to smooth it up with ? I have some 1500 but suspect that would just polish it or is that the idea ?