starter solenoid for Spitfire

["Sean Johnson" <sean_johnson@milacron.com>]

More spitfire questions:

I have a '75 Spitfire into which the previous owner installed a '79 engine.  
At times I turn the ignition key and nothing happens.

This may be a switch or contact problem, but something in the catlog makes me 
wonder.  Looking in the VB catalog, the '74-'75 starter relay is $21.95, but 
the '77-'80 relay is $54.95.

I'd assume the more costly unit is uprated perhaps?  Anybody know the reason 
for the difference?

thanks,

Sean Johnson
'75 Spit '79 engine '70 SU's