70 Still getting hot, what else to look for?

I put one of these triple flow desert coolers in 65 barracuda. The 408 would run 220 before i changed the radiator.I tried all of the above first. Now it never goes over 185 even on a 90 degree day in traffic. Its a little pricey but the fit is perfect and you will not have any more heating issues.

http://www.usradiator.com/default.htm