Unleaded gas??

["BIDGOOD, ALAN" <BIDGOODA@pab22a.ssd.loral.com>]

Hi all

I have had a 1978 B for a while and it runs on unleaded gas, so
no problem.  Just recently I have purchased a 73 BGT, and I am
now wondering what to do as this was built for leaded gas.  What
does everybody else do? - I know the valve seatings can be upgraded
etc., but what to do without modification when only unleaded gas is
available?

Thanks,               Alan B.'