Re: Questions about engine rebuild and machine shop work

Our Supreme Unleaded is allegedly 97 octane, in Texas. But then, we do make the
stuff here........

Jacques Le Clainche wrote:

> That's cutting it fine... I have close to 10:1 compression in my Twin Cam
> engine, and that was supposed to be fine for pump gas. It is not. Now do
> keep in mind here in CA the best pump gas is 91 octane, and the formulation
> is such I suspect gas in other states is actually better... and cheaper?
>
> I would personally not go over 9:1 compression for a street engine running
> on pump gas.
>
> JLC