cooling my slant 6

I changed the water pump on my slant 6 cause I'm looking to drive to a show this summer and my top water hose busted. I replace it with a new one but how do I know I'm not overheating. I have a temp gauge I gotta hook up but was wondering is a 4 blade fan enough to cool the engine that's the stock fan it came with. Seems like its always low on coolant. What do you guys think I wanna get the cooling good for the drive