With the stock compression ratio regular gas is alright. If your head has
been shaved a bit you might want the higher octane. Your car will tell you. As
to the lead, all the aluminum head cars came with bronze valve seats and might
benefit from a lead substitute. However, I doubt that many of the original
ones are left. Most have been replaced along the way with hard seats. IMHO,
forget the additive, even with the bronze seats it will be many, many, miles
before you have any problem caused by the lack of lead. If it has not been
done, next time you have the head done have the hard seats put in and it will
no
longer be an issue.
kw
In a message dated 7/11/2005 12:31:17 A.M. Pacific Daylight Time,
oscilloscope500@yahoo.com writes:
Sorry if this is a dumb question... Do any of you use a fuel additive in
each tank of gas? I was watching a DIY channel show on car restoration and
they
mentioned that you should put an additive in your classic car tank to
compensate for the leaded/unleaded gas thing. I know you can't run an unleaded
car
on regular, but I always thought that it was OK to run a regular car on
unleaded.
Does anybody do this? Is it necessary or can I just keep running regular
unleaded?
Thanks for the info... this leaded/unleaded thing is a little before my
time...
Matthew in Phoenix
'67 1600
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