New Cooling/fan question

I say buy a radiater. about 150.00 through Autozone. Ever noticed the stock electric fans hardly ever start unless the car is sitting still. Alot of those cars dont even have a grille to pull air though. A good flowing radiater alone should just about protect the engine. Then coolant, fan, and shroud compliment the radiater. The best compliments money can buy wont help a clogged radiater.