RE: heat at speed

["Peter Stanisavljevich" <pete_stanisavljevich@coxtarget.com>]

"Would this indicate that the water pump is not pushing enough water
thru the system to cool the engine?" 

Richard,

Is the inlet hose to the water pump collapsing under the additional
speed/suction, restricting the water flow? Some of those hoses have a
spring inside to prevent this. You might be able to see this happening
by having someone rev the engine while you watch the hose.

Peter S.