Data from drag strip

[Bruce]

There are 11 sec GNs using a single 3".
Just a matter of what you wanna spend,  I think some folks get overly
carried away.  Muffler type has as much to so with it as anything.
Bruce


> Is there an ideal threshold for WOT exhaust backpressure which defines the
> point at which attempting to reduce EBP further would yield very few gains
> in a hot street car with a matching cam grind?  Has anyone ever seen a
> rule of thumb correlation between EBP and lost HP?
> Walt.

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