An old issue is still plagueing me, when switching fuel tanks, ususally only
once a trip, the engine falters for 3-8 seconds, finally catches and it does
not occur again on subsequent tank changes in that flight.  Stop enroute,
full fuel and climb to altitude and it may or maynot occur.  I have moved
the fuel pump to the lowest location on the side panel, replaced the fuel
selector with an andair, inspected all lines for leaks and still I at a loss
to explain it.  The lines from the tank are 3/8" as opposed to the current
lines which are 1/2".  Would appreciate any thoughts the group has.

Pat Brunner
N98PB IVP  524Hours