Tom,
I purchased my exhast form lancair early last year (before Vern left) and
as I found out there is more than one fwd facing sump.
Do you have a stock sump that has been changed to fwd facing the exhast
will fit but I you have a sump that was built as a fwd facing such as an
aftermarket it has to have apx 1" added to the tubes before they cross
over.
If you bought the sump from Lancair then it would be the aftermarket
and exhast mods would have to be done. The name of the company that builds
them is snowline and I think they are in Bend OR.
They do show up in a google search.
Hope this helps
Gary Martin
N359TG
LNC with fwd sump.