Marcos Maniacs

Hey Guys,
                Well I am finally going to open up the motor and do some work 
hopefully a little more power. My question to you all is... Does anyone have 
any aversions to changing from leaded to unleaded.Also I am looking to do 
some exhaust work does anyone know of a place that makes chrome headers for 
the ford cortina 4 cyl. I never thought in my wildest dreams I would ever use 
those two words in one sentance        { ford..chromeheader}  Also I used to 
have a "cutoff valve" on my exhaust system on an old Lotus Elan. I figured I 
could pick up 7-10 horse. Any opinions? Also here in Colo. we have the 
British car conclave in September. I am the only Marcos out of 535 cars last 
year, so I am calling on all the Marcos owners to mass enforce this year!
 please.....
   
          Hal
          #5353