I am looking in to buying a 400ex, it says it has a 416 kit, ported and polished head. Will this decrease the reliability? How much more power will it provide?

Here is the add (I found it in the ex rider forums:
2000 400ex 1 year ago in March it received a 416 kit, ported and polished head, new plastic, seat & foam and Holeshot rear tires. I just installed a brand new battery and rear brake pads. This is my wife’s bike and we have decided to purchase a new home so she is willing to let it go for the home. It still has the stock exhaust but I'm a dealer for HMF and will supply a slip on or a complete pipe for dealer cost to the buyer. "Do Not Email And Ask How Much The Pipe Is I will only tell the price to a true potential buyer." Asking Price is $2750 OBO.



Hers a picture--------> http://www.predatorowners.com/member...yton%20033.jpg
2 ------->http://www.predatorowners.com/member...yton%20034.jpg

It says it is worth $2750.00 American, how much is that Canadian??

Is this a good deal? thanx a lot!!!
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it should be fine.

 

questions i would ask are ,how are the tie rods,a arm bushings, swingarm bolt and pivot bearings, axle bearings,hubs wobbly?, has it been to the sand?, and why was it rebuilt? if for performance then why the stock pipe? how regular has the oil and filter been changed, any records?you get the idea.