I use a dellorto clone carburetor. It flows real good and I think it is better than the stock NT carb so I recommend it. That pipe is ok but an expansion pipe will give you better performance. It looks like a stock pipe with a long header, not much of an upgrade from stock, just a longer stock pipe. The head is an upgrade from stock and I have never used one of those but probably not as good as a Fred Head. It might have better compression than stock but I don't expect it to run cooler than stock and might even run hotter since it has no large fins to dissipate the heat, also, it says that it is used. It also says "sprocket adapter" but all I see in the picture is a standard rag joint set-up, no picture of a sprocket adapter. The CDI is a stock one and I highly recommend you go to the auto parts store and put on a high quality spark plug boot, those plastic ones suck! It says nothing about the engine except that it is an 80cc, so I assume it is an ebay cheap one without a balanced crank. I would say the upgrades on this are minimal. Is it worth $150? Well, I wouldn't buy it, but it's not grossly overpriced, you could probably talk him down though.
