Compact set chemistry

What is better for a electric supercharger. got a 120amp alternator 1000cca battery.? - the best 24 volt charger available

http://www.yourhotcar.com/prod/RAM/Perfo ...

http://www.yourhotcar.com/prod/Superchar ...

http://cgi.ebay.com/ebaymotors/electric- ...

I was looking for, but it was all I could find. gives me the best shot "for my money," and there are better. I'm looking at spending about $ 300 or less to that of a turbo would be commissioned equipped AVE /.