I am currently in the early stages of building a drag bike out of my 2000 trailblazer. I would sell and start over but I have to much money into it. So I am going scrap weak 250 and either use a 400 srambler/sport motor and build it or use a motor off of a snowmobile. I would rather use the 400. So does anyone know were to buy new factory or used motors for a good price. Thanks for any info on my progect.