-------------- Original message from Bill Dube <bdube@al.noaa.gov>: --------------


> Looking at the photos, they seem to have combined the secondary
> ports with the outer primary ports. The timing on these ports is quite
> different. I would think that you would want to keep them separate to
> maximize the ram effect of the secondary port.
>
> I'm no expert, so I could be missing some key point.
>
> Bill Dube'
>
> What sort of HP are engines making with these manifolds?