in my early days of ebay, i would sit down on a sunday or monday and do random searches. either by area or by one single key word and narrow it down.  one sunday i stumbled accross a tunnel ram intake manifold starting bid 75 dollars.  it came with carbs and linkage.  so i bid on it thinking id be outbid before it ended.  as the days progressed nobody bid against me and i ended up winning the auction.  i figured it was for a small block.  i assumed small block chevy.  well when i got the manifold in finally.  it wouldn't fit a small block chevy.  so after extensive research and an early ended listing due to error on my part.  and the help of  a great ebayer who i rewarded later with an aluminum intake for an olds at no charge.  i came to find out this tunnel ram was for an amc.  what i didn't find out until later was that only 1100 of these were ever made.  so i put it up on auction and almost instantly it shot from 200 300 400 500 600 700 and sat at 700 for a few days then ended at over 1100 dollars and was paid for instantly.  when they woke me up off the floor were i passed out in awe  i emediatly refunded the guys shipping cost he paid for and told him shipping was on me.  i 3 day ups'ed him everything.  in suspense for the hammer to fall thinking there had to be a mistake.  next thing i knew i had a  double positive remark from the buyer who was ecstatic about his purchase.  well come to find out later on.  the reason i had ended up with the manifold so cheap was several reasons. 1st he mispelled edelbrock 2nd he called it a 2 carb manifold. 3rd he had no clue what it went to and didn't even attempt to even list a part number 4th and final his picture showed the manifold upsidedown and fuzzy  so there was no telling what it was.  and the only way i found it was i was doing a search on "alum" which he had in the title.  now i look for these things.  and usually if theres no bids then i'll let the seller know his mistake.  what alot of sellers dont realize is this.  85-90% of buyers only do title searches.  so they get this false security that they only need a few words in the title and can put the rest in the body.  or they will waste space with words like (and or the is )  which is ok if your listing the title for something and those words are part of the title.  otherwise dont waste that valuable space.  other searches i like to do is proximity searches in whole catagories.  and thats a good way to pick up on the heavier items people wont or cant ship. pick up only.  got some good deals there and sold a bike for 5 bucks because of that to a local.  were talking a running motorcycle not bicycle.  good luck and dont forget to vote