helllp with cooling issue

Damn, I read this whole thread looking for the answer to my problem.
Same type of symptoms:
Temp gauge creeps up above 200 while driving. I got an infrared thermometer for Christmas and this confirms the 200+ temp. I am concerned that next summer when the outside temp gets 90+ that it won't stay cool. I also have a 180* thermostat, installed correctly. I haven't found a shroud that fits yet, but that begs another question. The radiator fills the complete core support hole, where else is the air coming through? I can see the shroud would help at a stop sign, but not so much when you are moving...
Thanks,
C