Honda: overheating, Honda radiator

Question
i have a 99 accord 3.0 v6. car seems to run great around town. once i get it on the freeway for about 15 mins starts to overheat. i have also noticed if i sit in the driveway and hold it at 2500 rpm it will overheat. i have flushed the radiator. replaced radiator cap. replaced thermostat. also the fans are working. i am afraid that it may have a blown head gasket but i do not see any water in the oil. any other ideas as i am lost. thanks

Answer
Check the coolant reservoir while the car is revved and still at normal temperature. If it has bubbling in the overflow reservoir you most likely have a blown head gasket. Your description sounds more like a radiator that is restricted and not flowing and cooling properly.