Odd Ball Syetem Back Testing

["Mike Diplock" <mike@xxxxxxxxxxxxxxxxxxxxxxxx>]

I am looking to back test the Odd Ball System which requires historical
intraday (60 min) data for the NYSE advancers. My data provider only keeps 4
months of 60 min data. Does anybody know a reasonably priced source of 60
min NYSE advances data for 1-2 years?

Thanks in advance.

Mike Diplock