My stock '72 always ran on the lowest grade (87). Bit since
I had the head milled, it has needed 89. The later 1500's
had even less compression than mine originally had.
BTW, when a Spit knocks, it is not as obvious as you might expect.
The knocking noise tends to get drowned out by all the other noises...
Doug Braun
'72 Spit
At 04:38 PM 7/21/2003 -0700, you wrote:
>I have searched the archives on this list as well as NASS but can find no
>thread.
>
>What is the general consensus as to grade of gasoline to use in our cars?
>Specifically I am talking about the 73-80 15009s with a standard engine and
>no special tuning modifications.
>Using unleaded( as I imagine we are all using these days, both side of the
>pond) in a non modified engine.
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