Radiator Deflectors

["Stephen Hall" <shall@fastpointcom.com>]

Hi all-
  Quick question for ya-today, while making the weekly perusal through
my Spitfire catalogues, I noticed that there should be two deflector
panels on either side of the radiator. I don't have these. Are these
necessary and/or useful for proper cooling? My car has been running
pretty hot on longer highway drives, and besides the obvious
thermostat replacement/cooling system flush, I've been looking for
other ways to get the temp down.

Thanks!

Steve Hall
1970 Spitfire Mk 3-"Reginald"