Cant keep the car cool HELP

If i read your post right your running a single electric fan and no shroud?-correct me if Im wrong-but if so Ive had alot of problems trying to make that work on the street.You can make them work but it took both me and my friend a couple of electric fans and a custom shroud for our cars to stay in the comfort zone (both were 425-500 h.p. engines).Fan shrouds made all the difference on my cars,I never realized how much air they direct of the freeway either until I experimented with them.I gave up and just use a clutch fan and a factory shroud for the street.Forgot to ask-is the fan set up as a pusher or puller?.