[TR] Period Modifications to TR6

[Allan Reich]

Greetings
I recently purchased a 1975 TR6 with some engine modifications, 
specifically three stromberg carbs and a finned aluminum valve cover.
I applied for "Collector Status", which gives reduced insurance and 
restricted use to cars over 25 years old. You are allowed mods if they 
were available in the period the car was manufactured.
The 3 carbs are OK, but I was asked to provide documentation that the 
K&N air cleaners and the finned aluminum valve cover were "Period Mods".
So what I am asking is if anyone on the list has old mags or catalogs 
that might show these items as available .. I realize K&N might not be 
available but small air cleaners with paper filters were probably available.
Allan Reich
1975 TR6 CF30255U
  Vancouver, Canada