> said a known "problem" with the magnums was that the gasket for the
> cover plate at the bottom of the intake manifold often blows out
> and it can cause pinging. They recommend also to have a second steel
> plate welded to the existing bottom cover (but leaving an air gap
> between the two). This would keep the bottom of the manifold cooler
> from the hot oil in the valley, and thus reduce pinging and give a
> denser air charge.
Interesting information; I hadn't heard this before.
I'm pretty sure that manifold hot spots are not the cause of my
pinging, since the pinging is more pronounced when the weather is
cool. I'm pretty sure it's our winter formula gasoline.
Thanks,
Ron
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