Do you mean the ones in front of the radiator,
or behind?  (or both?)
But I am wondering:  The worst case scenario for
cooling seems to be when you are stuck in traffic,
and only the fan is supplying the airflow through
the radiator.  In this situation, I do not see
how the valences can affect the airflow much.
Doug Braun
'72 Spit
--- Spitfire 1500 <s1500@comcast.net> wrote:
> Does he have valences on under the hood? I did quite
> a bit of cooling 
> system overhauling, but what did the trick most was
> putting on new 
> plastic valences. The other ones previously were so
> worn, I removed 
> them. The valences, flimsy as they seem, guide the
> air nicely.
 
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