Good photo of Skip's impeller?

[Old Henry]

[QUOTE=51 MERC-CT;653334]

Originally Posted by Old Henry

So, looks like I'll just keep doing what I've been doing - keep using the pump I've got and remove the thermostat in the summer to increase flow and put it back in for winter for the heater to work better.
QUOTE]

Was just giving some thought as to what I would consider doing if I had an early ('32-'48) flathead and were in the same situation.
First remove the A.F.R's. (automatic flow regulators), then install M.F.R's.
(manual flow regulators).
The M.F.R's could be in the form of ball valves (no bigger than the I.D. of the head outlets) and located somewhere in the upper hose.
This could be rigged to give control of each side manually from the dash.
Set temp. for normal driving, come to a long hill at altitude, open 'm up.
(Concours types please disregard)

If I were to go with a MFR it would be the cardboard in front of the radiator in the winter.