Clutch vs. Electric Fan
Two fans tend to work against each other if they are opposed like you say. You neeed a real shroud to get it to pull air thru the whole core... Either decide to push it, or pull it, not both. Also, the Neon fans may not work... If they are like the ones on my '97, they are meant to be run with a controller, and running 12 volts to them doesnt work... I tried...lol. I havent had working fans on that car in 7 years. The other thing you might want to play with are water restirctors vs a thermostat. Sometimes controling the collant speed through the radiator and engine will help it cool better by allowing more time for removal of heat from the block, and removal of heat from the coolant by the radiator.